Fixes#15992.
If the last message of the topic was deleted, we update the stored
message_id in the topic history so that the topic order in topic_list
is updated correctly.
ES and TypeScript modules are strict by default and don’t need this
directive. ESLint will remind us to add it to new CommonJS files and
remove it from ES and TypeScript modules.
Signed-off-by: Anders Kaseorg <anders@zulip.com>
This is a pretty straightforward conversion.
The bulk of the diff is just changing emoji.js
to ES6 syntax.
There is one little todo that can be deferred
to the next commit--we are now set up to have
markdown.js require emoji.js directly, since
it is no longer on `window`.
The main thing here is that we check that the
actual data got put into our data structures.
(In general we want to move away from stubbing
data modules; any place where we stub data modules
is a relic of earlier days, where we were just
trying to set the bar for 100% line coverage,
even though some of the original coverage was
quite shallow.)
I also use real stubs instead of noops for
the calls out to UI-oriented modules.
In passing I tweak some comments in the actual
dispatch code.
This makes it so that the authoritative holder
of all emoji data is emoji.js, and all our
UI components that need emoji data consistently
pull data from emoji.js as needed.
Or to put it another way, we no longer need the
dispatch module to know that emoji_picker is
coupled to emoji precisely by the active_realm_emojis
data; it can now make fewer assumptions.
This is an easy prep step to help out phase
out page_params.realm_emoji.
All callers pass in what's effectively
page_params.realm_emoji. (The dispatch
code does it indirectly.)
Prettier would do this anyway, but it’s separated out for a more
reviewable diff. Generated by ESLint.
Signed-off-by: Anders Kaseorg <anders@zulip.com>
Prettier would do this anyway, but it’s separated out for a more
reviewable diff. Generated by ESLint.
Signed-off-by: Anders Kaseorg <anders@zulip.com>
Previously, the navbar sub count would not live update as users
subscribed or unsubscribed, this commit adds the relevant calls in
stream events.
It would have been better to just have a single call within
server_events_dispatch but it seems difficult due to the way of
mark_subscribed and mark_unsubscribed are structured.
stream_events.mark_unsubscribed conditionally calls
subs.update_settings_for_unsubscribed which calls
subs.rerender_subscriptions_settings and as such handles the update
for the subscriptions modal on its own. Hence, we simply rely on the
stream_data.update_calculated_fields to ensure the subscriber counts
are updated and make a call to
tab_bar.maybe_rerender_title_area_for_stream(sub).
stream_events.mark_subscribed is similar.
This commit changes stream_data.remove_subscriber to use stream id
instead of stream name. We are using stream ids so that we can
avoid bugs related to live update after stream rename.
Thsi commit changes stream_data.add_subscriber to use stream_id
instead of stream name. We are using stream ids so that we can
avoid bugs related to live update after stream rename.
This commit removes stream_edit.rerender function. We directly
call subs.rerender_subscriptions_settings directly from
server_events_dispatch.js, which was the only caller of rerender
function, as we already have sub object.
We are using stream ids so that we can avoid bugs related to live
update after stream rename.
With this implementation of the feature of the automatic theme
detection, we make the following changes in the backend, frontend and
documentation.
This replaces the previous night_mode boolean with an enum, with the
default value being to use the prefers-color-scheme feature of the
operating system to determine which theme to use.
Fixes: #14451.
Co-authored-by: @kPerikou <44238834+kPerikou@users.noreply.github.com>
Two things were broken here:
* we were using name(s) instead of id(s)
* we were always sending lists that only
had one element
Now we just send "stream_id" instead of "subscriptions".
If anything, we should start sending a list of users
instead of a list of streams. For example, see
the code below:
if peer_user_ids:
for new_user_id in new_user_ids:
event = dict(type="subscription", op="peer_add",
stream_id=stream.id,
user_id=new_user_id)
send_event(realm, event, peer_user_ids)
Note that this only affects the webapp, as mobile/ZT
don't use this.
Google has removed the Google Hangouts brand, thus we are removing
them as video chat provider option.
This commit removes Google Hangouts integration and make a migration
that sets all realms that are using Hangouts as their video chat
provider to the default, jitsi.
With changes by tabbott to improve the overall video call documentation.
Fixes: #15298.
We simply pass the visible message ids to remove_and_rerender
which supports bulk delete operation.
This helps us avoid deleting messages in a loop which freezes the
UI for the duration of the loop.
Fixes#15285
This event will be used more now for guest users when moving
topic between streams (See #15277). So, instead of deleting
messages in the topic as part of different events which is
very slow and a bad UX, we now handle the messages to delete in
bulk which is a much better UX.
We extract stream_edit.rerender to make
the live-update code easier to follow.
The function should eventually be inlined,
but I want to clean up some other stuff first.
These are basically shims for some deeper refactorings.
I basically just try to make the code express the
problems more clearly:
- use stream_name instead of sub
- make early-exit more explicit
- make it clear that add_subscriber needlessly
requires a name
- make it clear we have an unnecessary loop
I also fixed some phony data in the test.
We are trying to phase out the trigger-event way
of telling modules to do something.
In this case we not only remove the indirection
of the event handler, but we also get to remove
`compose_fade` from the `ui_init` startup sequence.
This also has us update `compose_fade` outside
the loop, although that's only a theoretical
improvement, since I don't think `peer_add` events
every actually include multiple streams.
To make the dispatch tests a little flatter, I
added a one-line change to zjsunit to add
`make_stub` to `global`.
To manually test:
* have Aaron reply to Denmark (keep compose box open)
* have Iago add Hamlet to Denmark
* have Hamlet unsubscribe
This reimplements our Zoom video call integration to use an OAuth
application. In addition to providing a cleaner setup experience,
especially on zulipchat.com where the server administrators can have
done the app registration already, it also fixes the limitation of the
previous integration that it could only have one call active at a time
when set up with typical Zoom API keys.
Fixes#11672.
Co-authored-by: Marco Burstein <marco@marco.how>
Co-authored-by: Tim Abbott <tabbott@zulipchat.com>
Signed-off-by: Anders Kaseorg <andersk@mit.edu>
We had removed this function from the codebase when we switched to
using dropdown_list_widget. This was accidentally left as it is when
making that change.
Previously, we handled these updates in server_events_dispatch
and could accidentally call widget.render() before initializing
the widget.
Original report: https://chat.zulip.org/#narrow/near/875608.
The sync_realm_settings function ensures that if the settings are
not open, any updates are a noop.
For the below payloads we want `owner_id` instead
of `owner`, which we should deprecate. (The
`owner` field is actually an email, which is
not a stable key.)
page_params.realm_bots
realm_bot/add
realm_bot/update
IMPORTANT NOTE: Some of the data served in
these payloads is cached with the key
`bot_dicts_in_realm_cache_key`.
For page_params, we get the new field
via `get_owned_bot_dicts`.
For realm_bot/add, we modified
`created_bot_event`.
For realm_bot/update, we modified
`do_change_bot_owner`.
On the JS side, we no longer
look up the bot's owner directly in
`server_events_dispatch` when we get
a realm_bot/update event. Instead, we
delegate that job to `bot_data.js`.
I modified the tests accordingly.
This commit removes most of the duplicate logic for the stream selection
dropdowns for the settings: `realm_signup_notifications_stream_id` and
`realm_notifications_stream_id`.
We also make minot changes to DropdownListWidget to accomodate the stream
rendering of the format: `#stream_name`.
We finally switch to using stream_ids instead of stream_name everywhere
which makes reading data from page_params simpler.
`stream_topic_history` is a more appropriate name as this
module will contain information about last message of a
stream in upcoming commits. Function and variable names
are changed accordingly like:
* topic_history() -> per_stream_history()
* get_recent_names() -> get_recent_topic_names()
* name -> topic_name
Option is added to video_chat_provider settings for disabling
video calls.
Video call icon is hidden in two cases-
1. video_chat_provider is set to disabled.
2. video_chat_provider is set to Jitsi and settings.JITSI_SERVER_URL
is none.
Relevant tests are added and modified.
Fixes#14483
The previous logic avoided updating the setting for
non-administrators, because their value was always true, but removing
those if statements results in better test coverage and is more likely
correct if we ever try to support live-update for whether the user is
an administrator.
We've noticed that many production organizations don't set either an
organization description or profile picture, even large open source
organizations that could definitely take advantage of this feature.
This adds a top-of-page banner that bugs organization administrators
to add an organization description and profile picture, generally
starting on the second login (as we only do it on page load after
notifications are configured).
Significantly tweaked by tabbott to get the right user experience.
Fixes#14019.
Now if a default stream gets deleted, we just
redraw the table. We always have a small number
of default streams, and the way that we were removing
rows without the actual consent of `list_render` was
really janky (and just a vestige of pre-list-render
code that never got fully ported).
This also makes us consistent with how we handle
added streams (i.e. just call
`update_default_streams_table`).
ASIDE:
Ideally we will update `list_render` at some point to
have an API for adding and removing elements. It does
allow you now to call `data()` to reset its data, but
for now we just build a new `list_render` object every
time.
We had this API:
people.add_in_realm = full-fledged user
people.add = not necessarily in realm
Now the API is this:
people.add = full-fledged user
people._add_user = internal API for cross-realm bots
and deactivated users
I think in most of our tests the distinction between
people.add() and people.add_in_realm() was just an
accident of history and didn't reflect any real intention.
And if I had to guess the intention in 99% of the cases,
folks probably thought they were just creating ordinary,
active users in the current realm.
In places where the distinction was obviously important
(because a test failed), I deactivated the user via
`people.deactivate`.
For the 'basics' test in the people test suite, I clean
up the test setup for Isaac. Before this commit I was
adding him first as a non-realm user then as a full-fledged
user, but this was contrived and confusing, and we
didn't really need it for test coverage purposes.
This follows the convention of other code calling into
add_sub_to_table of checking whether the stream settings overlay is
open (and thus in the DOM) before trying to rerender it.
This name was misleading, because we weren't
actually setting realm_filters (that's what
`page_params.realm_filters = realm_filters`
is for); we were instead updating our
realm filter rules.
For Manage Streams, when we render the subscriptions
template, a significant amount of time is taken
by the "t" helper.
Obviously for the first call, we expect "t" to be
somewhat expensive, but subsuquent calls should be
fast, but i18next seems to have some overhead.
Also, we can save a tiny bit of overhead (marking it
as a safe string) that comes from our helper.
As an aside, are we sure it's ok to mark translations
as safe strings?
To test before and after, use blueslip.timings before
and after this commit. When I tested with about 300
streams, the difference is pretty striking:
without cache: 100ms
with cache: 20ms
This is particularly interesting, since the subscriptions
templates have long strings for things like the SVG-based
checkmarks, but they're not really the bottleneck.
Unfortunately, this doesn't seem to be a huge win
elsewhere. In some places we don't call "t", but of
course those might change in the future and benefit from
the cache. And in other places we have smart widgets
that avoid rendering all N objects at one (e.g. buddy
list and list_render).
So this might be too big a hammer to speed up one
screen (albeit a really slow one). It's possible
that we should simply move the i18n.t step **outside**
of certain templates to avoid doing them in a loop.
As the part of making notification stream settings to change using
"save/discard" widget instead of immediate saving, we need to access the
stream id which is being selected at the moment.
This experimental setting disables sending private messages in Zulip
in a crude way (i.e. users get an error when they try to send one).
It makes no effort to adjust the UI to avoid advertising the idea of
sending private messages.
Fixes#6617.
Calling `set_filter_out_inactives` is expensive, since we
count up the number of subscribed streams, which iterates
through all your streams, creates a new list of subscribed
streams, then counts them.
In my dev setup, I created 700 streams, and this shaved
about 700ms off of the initial call to `build_stream_list`.
This commit was originally automatically generated using `tools/lint
--only=eslint --fix`. It was then modified by tabbott to contain only
changes to a set of files that are unlikely to result in significant
merge conflicts with any open pull request, excluding about 20 files.
His plan is to merge the remaining changes with more precise care,
potentially involving merging parts of conflicting pull requests
before running the `eslint --fix` operation.
Signed-off-by: Anders Kaseorg <anders@zulipchat.com>
With webpack, variables declared in each file are already file-local
(Global variables need to be explicitly exported), so these IIFEs are
no longer needed.
Signed-off-by: Anders Kaseorg <andersk@mit.edu>
There was a bug where the success banner stuck
around even after the export completed. We now
nicely fade and remove the banner upon a successful
population of the export in the table.
Fixes: #13045
This fixes the mis-alphabetized `fluid_layout_width` at few places in
the codebase, along with that it also fixes sorting order of
`property_types` dictionary in models.py and few model fields of
`UserProfile` model class.
This adds a setting to control Zulip's default behavior of sorting to
bottom and graying out inactive streams. The previous logic is still
the default "automatic", but this gives users more control. See the
models.py comment for details.
Fixes#11524.
This commit migrates the Subscription's notification fields from a
BooleanField to a NullBooleanField where a value of None means to
inherit the value from user's profile.
Also includes a migrations to set the corresponding settings to None
if they match the user profile's values. This migration helps us in
getting rid of the weird "Apply to all" widget that we offered on
subscription settings page.
The mobile apps can't handle None appearing as the stream-level
notification settings, so for backwards-compatibility we arrange to
only send True/False to the mobile apps by applying those defaults
server-side. We introduce a notification_settings_null value within a
client_capabilities structure that newer versions of the mobile apps
can use to request the new model.
This mobile compatibility code is pretty effectively tested by the
existing test_events tests for the subscriptions subsystem.
This commit replaces the `create_stream_by_admins_only` setting with a
new `create_stream_policy` setting, which mirroring the structure of
the existing `invite_to_stream_policy`.
This is important preparation for migrating the waiting period feature
to be its own independent setting.
Fixes#12236.
This is useful when syncing avatars from an integrated LDAP/active
directory.
The upload avatar and delete avatar buttons are hidden if avatar
changes are disabled and the user is a non-admin.
If the user has a gravatar set, then the user will not be able to
upload an image as their avatar if avatar changes are disabled.
Part of #12132.
This commit creates a new organization setting that determines whether
a user can invite other users to streams. Previously this was linked
to the waiting period threshold, but this was both not documented and
overly limiting.
With significant tweaks by tabbott to change the database model to not
involve two threshhold fields, edit the tests, etc.
This requires follow-up work to make the create stream policy setting
work how this code implies it should.
Fixes#12042.
Use the results of commit #73d26c8 to remove the method
`render_stream_description` in static/js/stream_data.js and instead
use the rendered_description attribute now being sent by the backend.
This will be a valuable optimization and a step towards removing the
need for the marked.js markdown parser and speeding up the client end.
When you hover over a user that has set a user
status, we now show something like "out to lunch."
You can test this in the console by doing:
user_status.server_update({status_text: 'out to lunch'})
And then hover over your name in the buddy list.
This adds a setting under "Notification" section of
"Organization settings" tab, which enables Organization administrator to
control whether the missed message emails include the message content or
not.
Fixes: #11123.
This fixes a section of code that hasn't really
been turned on yet. We decided to rename
"info" to "status_text", and I apparently missed
this. We don't have any UI to set these yet,
so it was a harmless bug.
I'll try to get some better test coverage on this
when I tweak the buddy list to show user status.
This adds a new realm_logo field, which is a horizontal-format logo to
be displayed in the top-left corner of the webapp, and any other
places where we might want a wide-format branding of the organization.
Tweaked significantly by tabbott to rebase, fix styling, etc.
Fixing the styling of this feature's loading indicator caused me to
notice the loading indicator for the realm_icon feature was also ugly,
so I fixed that too.
Fixes#7995.
We are trying to carve room for a more specific
"user_status" concept, which refers to statuses
that users specifically set, like "I'm away".
So we call this function "update_presence_info",
which reflects that it's more about actual
"presence"--i.e. the user really is present
in the browser, even though the actual human
may not want to be disturbed.
This new setting is still hidden in the UI when not in the development
environment, because the feature isn't ready for production, but
merging this will help simplify future work on the feature.
Previously, when a new stream was created on a client other than the
current one, the browser would first receive the "stream_created"
event, and make up a client-side display color at that time to use in
the "stream settings" view (it doesn't yet know the color that was
selected when the user was actually subscribed, because it doesn't
even know yet that the user is being subscribed to this stream), and
then moments after it'll receive a "susbcribe" event letting the
client know that the user is subscribed (and specifying the color to
use).
However, due to an argument not being passed through properly and a
missing rerender, we were not properly updating either the data
structures or doing a stream colors rerender in order to show the new
color.
This fixes the issue reported in
https://chat.zulip.org/#narrow/stream/48-mobile/subject/stream.20colors/near/660170
We move remove_deactivated_user_from_all_streams
into stream_events.js. There were some minor changes
to rename variables and also to not rely on using
`stream_info`.
In 47aaa73f96, we fixed one issue, which
is that server_events_dispatch.js was calling `update_starred` with
the wrong arguments, but created a new one (toggle_starred wasn't
updated) and missed another (which is that we weren't ever updating
message.starred, and thus if you toggle a message's star-state in one
browser, and then tried to toggle it back in a second, it would feel
like the click didn't work, because it was trying to toggle
e.g. off->on a second time).
This renames Realm.restricted_to_domain field to
emails_restricted_to_domains, for greater clarity as to what it does
just from seeing the setting name, without having to look it up.
Fixes part of #10042.
Fixes#7665
In case of invitation events, 'invites_changed' event without
any real payload is sent to all the realm admins and the user.
The event is handled by reloading the list to view recent changes.
Commit tweaked by shubhamdhama:
* Send an `invite_changed` event when an user accept an invite.
Also, added the test for the same.
* No need to delete the invite list in frontend, current logic
handles the case when the invite data is changed properly.
* Extracted the common logic for sending an event into
`notify_invites_changed`.
This commit prepares the frontend code to be consumed by webpack.
It is a hack: In theory, modules should be declaring and importing the
modules they depend on and the globals they expose directly.
However, that requires significant per-module work, which we don't
really want to block moving our toolchain to webpack on.
So we expose the modules by setting window.varName = varName; as
needed in the js files.
The function `settings_account.add_custom_profile_fields_to_settings`
called twice, which resulted in two templates objects being
rendered.
The function also didn't check whether settings overlay was open or
not when processing new events, and thus would throw an "undefined"
error if a custom profile field was editing while the overlay was not
open.
Fixes#9668.
For some reason in my original version I was sending both
content and data to the client for submessage events,
where data === JSON.parse(content). There's no reason
to not just let the client parse it, since the client
already does it for data that comes on the original
message, and since we might eventually have non-JSON
payloads.
The server still continues to validate that the payload
is JSON, and the client will blueslip if the server
regressses and sends bad JSON for some reason.
This should make it easier for us to iterate on a less-dense Zulip.
We create two classes on body, less_dense_mode and more_dense_mode, so
that it's easy as we refactor to separate the two concepts from things
like colors that are independent.
This commit lays the foundation to handle submessages for
plugin widgets. Right now it just logs events, but subsequent
commits will add widget functionality.
We now do real-time sync to update the attachments UI when new
attachments are uploaded/deleted.
While we're at it, we fix the UI for the delete option to not do a
weird local echo thing.
This completes the work of a couple issues. There's still useful
performance work to do here (see the TODO), but it's a minor issue in
a rarely-used screen.
Fixes#6731.
Fixes#3710.
We send add events on upload, update events when sending a message
referencing it, and delete updates on removal.
This should make it possible to do real-time sync for the attachments
UI.
Based in part on work by Aastha Gupta.
Add realm setting to set time limit for message deleitng.
Set default value of message_content_delete_limit_seconds
to 600 seconds(10 min).
Thanks to Shubham Dhama for rebasing and reworking this. Some final
edits also done by Tim Abbott.
Fixes#7344.
Currently, stream subscriptions aren't getting updated without
hard reload when user is deactivated in realm.
Fix this issue by updating stream subscription widgets on user
deactivation event.
Fixes#5623
Fixes#8853.
In certain cases, the browser is not able to look up the message.
Include the recipient data for the message in the delete_message event,
so look up of those attributes by the browser isn't required.
Replace mark_message_as_read with process_read_messages_event as the
latter function is only correct for marking a message as having been
read by this browser.
In our new system for updating realm settings, we don't need to create
separate functions to update the input elements for each feature.
Most of the work is done automatically by
`settings_org.sync_realm_settings`.
We are having a same code in `render_notifications_stream_ui`
and `render_signup_notifications_stream_ui` functions aside from
the HTML element. So this commit will remove the duplicate code in
`render_signup_notifications_stream_ui` and make use of
`render_notifications_stream_ui`.
Fixes#8886.
Now that we have support for displaying custom profile fields, this
adds administrator-level support for creating them.
Tweaked by tabbott to fix a few small bugs and clean up the commit message.
Fixes#1760.
This fixes the user groups UI to follow the Zulip standard mechanisms
(using the appropriate server_events system to update all browsers
properly). It also, as a side effect, fixes#8692, since it
eliminates the weird behavior of trying to re-insert a user group
after reformatting it in the frontend.
Thanks to Tarun Kumar for preliminary work on this.
Currently, our stream creation do not add stream list to all
stream list. Only subscription-add event add stream list to
stream list. If public stream is created without acting user
subscribed to stream, then newly created stream is not listed
to all stream list.
On stream creation add sub to all stream list table.
Rename `toggle_allow_message_editing_pencil` to
`update_message_topic_editing_pencil` in `settings_org.js`.
As this function update the pencil icon for updating message
topic in message row header.
Add `translate_emoticons` to `prop_types` and `expected_keys`.
Furthermore, create a emoji-translating Markdown inline pattern.
Also use a JavaScript version of `translate_emoticons` and then use
this function during Markdown previews and as a preprocessor. This
is only needed for previews, because usually emoticon translation
happens on the backend after sending.
Add tests for emoticon translation, a settings UI, and a /help/ page
as well.
Tweaked by tabbott to fix various test failurse as well as how this
handles whitespace, requiring emoticons to not have adjacent
characters.
Fixes#1768.
This fixes the real-time sync for the user groups membership data
structure to work like these work in the rest of Zulip; now, edits
made in one browser are immediately and correctly reflected in other
browsers.
This adds button under "Organization profile" settings, which
deactivates the organization and sends an "event" to all the
active user and log out them.
Fixes: #8212.
This is done by using a bot's ID instead of email in
the handler methods for bot_data.bots and bot_data.services,
and updating all code paths involved.
This commit adds a setting to limit creation of generic bots
to admins for realms that want that restriction. (Generic
bots, apart from being considered spammy on some realms,
have less locked down permissions than webhook bots).
Fixes#7066.
This mostly moves code from server_events_dispatch, but
it also de-duplicates the logic in emoji_success(), and
it does early-return for the "text" case to keep the
function a bit flatter.
We no longer have a special UI setting and model
field ("emoji_alt_code") for saying users want text-only
emojis. We now instead make "text" be a fifth choice
for "emojiset".
Fixes#7406
This adds custom CSS through JavaScript for things that do not
scope well and will override other inherited styles.
This should ONLY be used for problematic CSS that has no obvious
or easy CSS-only solution.
(Specifically, we need this for the "default link" styling, which is
hard to override because we don't want to start winning ties due to
specificity that we would not have won in the light theme).
When we were deleting a stream from the sidebar using the
stream/delete event, we were getting tracebacks due to this sequence
of operations:
* remove id from stream_list.stream_sidebar
* rebuild stream list
* remove sub from stream_data
This fixes the bug by calling stream_data.delete_sub() first.
Deletions are tricky if you do things out of order. We can probably
prevent tracebacks by having a deleted flag, but that can just cause
different problems.
Last commit tweaked by tabbott to fix a small bug in handling the case
where the user was not subscribed to the delete stream.
We continue to have page_params.realm_default_streams, but
now we do lookups on whether a stream is a default stream
by using a Dict indexed by stream_id.
We are also careful to update that during live updates.
This fixes a flaw that we weren't updating the list of realms
correctly for events that remove a default stream.
This fixes a confusing bug where administrators would be offered the
convenient topic-edit pencil even if message editing was actually
disabled.
This doesn't yet fix the real-time sync issues of changing the setting
without reloading.
Fixes#5946.
The new method borrows some code from the event loop
and unread_ops.mark_messages_as_read, and it is now
flexible about message_ids being marked as unread
even when there is no corresponding message in the
message store. For that scenario we still want to
update our data structures, which wasn't happening
before this change. (Generally, this was a non-issue
up until now, but it will become a bigger issue when
we start loading unread message ids from the server.)
This new setting controls whether or not users are allowed to see the
edit history in a Zulip organization. It controls access through 2
key mechanisms:
* For long-ago edited messages, get_messages removes the edit history
content from messages it sends to clients.
* For newly edited messages, clients are responsible for checking the
setting and not saving the edit history data. Since the webapp was
the only client displaying it before this change, this just required
some changes in message_events.js.
Significantly modified by tabbott to fix some logic bugs and add a
test.
`add_emoji_by_admins_only` backend setting is represented by page_param's
`realm_add_emoji_by_admins_only` attribute. When this setting was changed
we were wrongly updating the `add_emoji_by_admins_only` attribute which
doesn't exist.
This system hasn't been in active use for several years, and had some
problems with it's design. So it makes sense to just remove it to declutter
the codebase.
Fixes#5655.
Added a dropdown in the organization settings page with a search-box and
required styles. Also added an element to disable it. Added a method to
populate the dropdown using list_rendering.js. Also altered response to
the event of deletion of the notifications stream on the frontend. On
selection of a new stream or on clicking 'Disable', a patch request is
made with stream-id to /json/realm.
Fixes: #3708.