The user timezone is only used for user's profile, so we can
move this setting to the Profile panel of settings and this
will also help us in covering some space when there are no
custom profile fields for the organization.
This commit fixes the documentation of settings as we have
replaced "Your account" section into two new sections -
"Profile" and "Account & privacy".
This commit also fixes a comment in the test for settings
documentation in test_middleware.py.
This commit addresses @timabbott 's comments, by adding a new article
"Move content to another topic".
Thanks to the new article, I also simplified a step from the "Rename a
topic" article to keep it focused on renaming only.
* Move content on moving topics between streams to a dedicated
article. We advertise it as "move content" to hint that one can move
messages or split topics, and link to it.
* This deletes change-the-topic-of-a-message, because the same content
is already covered in rename-a-topic.
* This commit mostly just moves content between articles. Most of that
content was redundant with the first few paragraphs of the surviving
"rename a topic" article. The former "This is useful for" se ntence
was adapted to the remaining article.
* This commit also adds a redirect for the removed article, and
updates related links.
After adding owner role, we allow last admin to deactivate
but not allow the last owner to deactivate, and this commit
fixes the warning about not allowing last admin.
This isn't the best writing, but it'll help us remember to cover these
details when we do a major pass on this article after adding upcoming
status changes.
The Hubot project looks to be abandoned; it hasn’t been updated in
years and its own installation instructions don’t work anymore.
Remove our special placement of Hubot alongside Zapier and IFTTT.
Signed-off-by: Anders Kaseorg <anders@zulip.com>
This commit updates the docs as the setting for invites
is separated into two UI elements - a checkbox for
'are invites required to join organization' and a
dropdown for setting 'who can invite new users'.
The message-editing section of settings is moved from "Organization
Settings" to "Organization Permissions", which feels like a more
natural place for these settings.
Because our mention logic now has a way to distinguish a user with one of these
weird names from a wildcard mention, we no longer need this explicit warning.
(It'd still be a bit confusing, but no more so than various other weird names you could
invest).
The command:
codespell --skip='./locale,*.svg,./docs/translating,postgresql.conf.template.erb,.*fixtures,./yarn.lock,./docs/THIRDPARTY,./tools/setup/emoji/emoji_names.py,./tools/setup/emoji/emoji_map.json,./zerver/management/data/unified_reactions.json' --ignore-words=codespell_ignore_words.txt .
The content of codespell_ignore_words:
```
te
ans
pullrequest
ist
cros
wit
nwe
circularly
ned
ba
ressemble
ser
sur
hel
fpr
alls
nd
ot
```
We don't want to claim something so strong as the first of this text,
because the mutee can still guess that they have been muted if the
muter suddenly starts completely ignoring messages, especially PMs.
But this framing is better in retaining the perspective as you.
We use styling same as that of the number shown for overflow
(e.g "+3") which has a gray background.
To keep these avatars up-to-date, we need to rerender the
recent topics view after receiving a `muted_users` event.
Also update the user documentation to mention this detail.
We deliberately avoid mentioning "recent topics" because
this applies to mobile too.
Also link to it from the API documentation page,
other help pages, and the confirmation dialog for
muting a user.
With substantial edits by tabbott and alya.
In 215320bc72, we added the typeahead for
the `pygments_name` field which helped lookup the human-readable
`pretty_name`. However, we forgot to remove the workaround method
mentioned in the docs to lookup the name before the typeahead was
introduced.
As we change the icon for Group PMs in #18160, the docs related
to it is now outdated. This commit removes the documentation part
that is outdated from status-and-availability section.
* Move the extended documentation of code blocks to a separate page.
* Merge "code playgrounds" documentation to be a section of that page.
* Document copy widget on code blocks.
* This commit changes how we refer to "```python" type syntax for code
blocks. Instead of being called a syntax highlighting label, this is
now referred to as a "language tag", since it serves both syntax
highlighting and playgrounds.
* Remap all the links.
* Advertise this new page in various places that previously did not have a link.
Linked the Help Center document in places like
- zulip.yaml (/events, /register/, realm/playgrounds,
/realm/playgrounds/{playground_id})
- /help/format-your-message-using-markdown (Linked to make
users reading the markdown code block style, aware of this
feature)
- /templates/settings/playground_settings_admin.hbs (Linked
as a reference to read more about playgrounds before
configuring one)
Also showcase the feature on /features and /for/open-source.
This commit fixes the following help pages -
- configure-who-can-create-a-stream.md to use "Stream permissions"
subsection and not "Other permissions".
- configure-who-can-invite-to-streams.md to use "Stream permissions"
subsection and not "Other permissions".
- restrict-wildcard-mentions.md to use "Stream permissions" subsection
and not "Organization permissions".
- restrict-bot-creation.md to use "Other permissions" subsection and
not "Organization permissions".
- restrict-visibility-of-email-addresses.md to use "User identity"
subsection and not "Organization permissions".
This commit fixes invite-new-users.md to show all the options of who
can invite under "Are invitations required for joining the organization?"
and makes this page similar to help pages for other policies.
This commit updates restrict-permissions-of-new-members.md
to add "inviting users to organization" in the list of actions
that can be restricted for new members.
We also fix the subsection of waiting_period_threshold to be
"Joining the organization".
* Add mobile app instructions for interacting with them.
* Fix inconsistent headings.
* Document the new state that starred message counts are the deafult,
and mention the "come back to" workflow for them.
Commit dc67870 introduced a user confirmation modal before
deleting profile picture, leaving the user documentation
unchanged.
Added a commit to reflect the newly added change within
the user documentation as well.
This commit adds both frontend and backend code to invite a user as
moderator. We allow only existing owners and admins to invite a user
as a moderator.
We'll extend this in the future with details on what is configurable,
but this at least ensures we don't have a state where they don't
appear in our documentation at all.
In general, `./scripts/restart-server` will already work in any
circumstance where the server is already stopped and needs to be
started. However, it will output a couple minor warnings, and it is
not readily obvious that it *will* work correctly.
Add an alias for `restart-server` named `start-server`, for
parallelism with `stop-server`, which omits the steps of
`restart-server` which would stop the server first.
Using `supervisorctl stop all` to stop the server is not terribly
discoverable, and may stop services which are not part of Zulip
proper.
Add an explicit tool which only stops the relevant services. It also
more carefully controls the order in which services are stopped to
minimize lost requests, and maximally quiesce the server.
Locations which may be stopping _older_ versions of Zulip (without
this script) are left with using `supervisorctl stop all`.
Fixes#14959.
This reverses the policy that was set, but incompletely enforced, by
commit 951514dd7d. The self-closing tag
syntax is clearer, more consistent, simpler to parse, compatible with
XML, preferred by Prettier, and (most importantly now) required by
FormatJS.
Signed-off-by: Anders Kaseorg <anders@zulip.com>
This commit adds an API to `zproject/urls.py` to edit/update
the realm linkifier. Its helper function to update the
database is added in `zerver/lib/actions.py`.
`zulip.yaml` is documented accordingly as well, clearly
stating that this API updates one linkifier at a time.
The tests are added for the API and helper function which
updates the realm linkifier.
Fixes#10830.
This widget only filters the user's subscription -- it's only suggest
public streams that the user is not subscribed to. "Filter" is the
correct label for a widget with this use case.
We had a mix of the two names, and "video call provider" both feels
more professional and more clear about precisely what it does.
We don't change the API fields, since it doesn't seem worth an API
migration.
Documentation about using and configuring different video
call providers was present at /help/start-a-call. This
documentation was later moved to /integrations as asked in
issue #17588. So to avoid redundancy most of the documentation
in /help/start-a-call is removed, by providing appropriate
links, pointing to where new documentation lives.
Fixes: #17588.
This is a preparatory commit that documents
steps for setting a video chat provider for an
organization. It is added as a separate section
in /help/start-a-call. Permalinks to this section
are utilized in succeeding commits which move
documentation of our video call providers to
`/integrations`, as asked in issue #17588.
Tweaked by tabbott for clearer/more consist language.
This commit adds a "Create your own" button on the integrations page. It
redirects to "api/integrations-overview" page and is placed by the side
of "Request an Integration" button.
Fixes#7935
There was no proper documentation to guide user to request an integration.
The following changes documents the whole process and links it from the
`/integrations/` page making it visible to the end-user.
Fixes#7935
Similar to the previous commit, we have added a `do_*` function
which does the deletion from the DB. The next commit handles sending
the events when both adding and deleting a playground entry.
Added the openAPI format data to zulip.yaml for DELETE
/realm/playgrounds/{playground_id}. Also added python and curl
examples to remove-playground.md.
Tests added.
This endpoint will allow clients to create a playground entry
containing the name, pygments language and url_prefix for the
playground of their choice.
Introduced the `do_*` function in-charge of creating the entry in
the model. Handling the process of sending events which will be
done in a follow up commit.
Added the openAPI format data to zulip.yaml for POST
/realm/playgrounds. Also added python and curl examples for using
the endpoint in its markdown documented (add-playground.md).
Tests added.
Adds backend code for the mute users feature.
This is just infrastructure work (database
interactions, helpers, tests, events, API docs
etc) and does not involve any behavioral/semantic
aspects of muted users.
Adds POST and DELETE endpoints, to keep the
URL scheme mostly consistent in terms of `users/me`.
TODOs:
1. Add tests for exporting `zulip_muteduser` database table.
2. Add dedicated methods to python-zulip-api to be used
in place of the current `client.call_endpoint` implementation.
We use GIPHY web SDK to create popover containing GIFs in a
grid format. Simply clicking on the GIFs will insert the GIF in the compose
box.
We add GIPHY logo to compose box action icons which opens the GIPHY
picker popover containing GIFs with "Powered by GIPHY"
attribution.
The current documentation doesn't clearly explain the process of
changing the organization's subdomain.
This commit adds instructions for user to get the string_id of their
organization and then lists the commands to be executed in the
management shell to change the subdomain.
Part of #17857.
Currently, there was no markdown page for deactivate-own-user API
endpoint. Created deactivate-own-user.md for the API page and
created a new owner client in test-api to reactivate the client
deactivated during testing.
Also changed endpoint name from deactivate-my-account to
deactivate-own-user, for better consistency with other endpoints.
Fixes#16163.
Extend our markdown system to support mentioning of users
by id also. Following these changes, it would be possible
to mention users with @**|user_id** and silently mention
using @_**|user_id**.
Main intention for extending the mention syntax is to make
it convenient for bots to mention a users using their ids. It
is to be noted that previous syntax are also supported.
Documentation tweaked by tabbott for better readability.
The changes were tested manually in development server, and also
by adding some new backend and frontend tests.
Fixes: #17487.
TextField is used to allow users to set long stream + topic narrow
names in the urls.
We currently restrict users to only set "all_messages" and
"recent_topics" as narrows.
This commit achieves 3 things:
* Removes recent topics as the default view which loads when
hash is empty.
* Loads default_view when hash is empty.
* Loads default_view on pressing escape key when it is unhandled by
other present UI elements.
NOTE: After this commit loading zulip with an empty hash will
automatically set hash to default_view. Ideally, we'd just display
the default view without a hash, but that involves extra complexity.
One exception is when user is trying to load an overlay directly,
i.e. zulip is loaded with an overlay hash. In this case,
we render recent topics is background irrespective of default_view.
We consider this last detail to be a bug not important enough to block
adding this setting.
Go to Recent Topics on "#", no hash and "#recent_topics".
Go to Recent Topics as the last destination for escape key.
Map `a` key to All messages and change its hash to
`#all_messages`.
Add new rest api endpoint GET users/{email} for looking up a user by
email, which is useful especially for corporate API applications that
might already have a user's email address.
Fixes#14302.
The 100 invite per day restriction is only for the free plan. Also,
the value 100 is configurable using
settings.INVITES_DEFAULT_REALM_DAILY_MAX. On top of this, newly
created realms on free plan combined can only send
INVITES_NEW_REALM_LIMIT_DAYS number of invites. So it's better not
to hardcode 100 in the doc.
We use 1199px for hiding right column.
The components changed here were tested to be working fine.
This change is not likely to introduce any regression as the
calculations in the components here were not dependent upon the
breakpoint being at 1165px.
As of Feb 15th 2019, Hipchat Cloud and Stride
have reached End Of Life and are no longer
supported by Atlassian. Since it is almost 2 years
now we can remove the migration guides.
Allowing any admins to create arbitrary users is not ideal because it
can lead to abuse issues. We should require something stronger that
requires the server operator's approval and thus we add a new
can_create_users permission.
This commit moves the wildcard mentions documentation to a top-level page.
Edited by tabbott to deduplicate with the existing docs, and add cross-links.
Updated create-bot-construct-url-indented.md file with
guidelines on how to URL-encode stream name and topic
name. The hyperlink added will solve the issue for those
who use emoji in stream name or topic name.
Tweaked by tabbott to edit the copy and update the non-indented
version as well.
Fixes#16430.
Fixes#16284.
Most of the work for this was done when we implemented correct
behavior for guest users, since they treat public streams like private
streams anyway.
The general method involves moving the messages to the new stream with
special care of UserMessage.
We delete UserMessages for subs who are losing access to the message.
For private streams with protected history, we also create UserMessage
elements for users who are not present in the old stream, since that's
important for those users to access the moved messages.
Zulip converts :) to the 1F642 Unicode emoji and promotes the same emoji
in the popular section of the emoji picker.
Previously Zulip has labeled 1F642 as "slight smile". While that name
conforms to the Unicode standard (which describes the code point as
SLIGHTLY SMILING FACE), it didn't match our use case of the emoji.
If a user types :) or selects the first smile in the emoji picker they
probably mean to express a regular "smile" and not a "slight smile",
which raises the question why they are only smiling slightly.
This commit relabels 1F642 as 😄 and our previous 😄 263A as
:smiling_face:. Note that 263A looks different in our three supported
emoji sets, so it is not suited to be our "default smile".
This change does not require a migration since our emoji system stores
both unicode points and names and handles name changes transparently.
Zulip Desktop version 5.3.0 only supported adding custom certificates
inside the application. Starting in version 5.4.0, it also supports
reading from the system certificate store; in the next release (likely
5.5.0) the support for the internal store will be removed.
Document the change, and add explicit instructions on how to add
certificates into the system store on each of the operating systems.
Co-authored-by: Manav Mehta <tmanavmehta@gmail.com>
This commits adds the steps for configuring message retention policy
for an organization and for individual streams in message retention
policy docs.
Fixes#15495.
After some discussion, everyone seems to agree that 3.0 is the more
appropriate version number for our next major release. This updates
our documentation to reflect that we'll be using 3.0 as our next major
release.
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>
We can now invite new users as realm owners. We restrict only
owners to invite new users as owners both for single invite
and multiuse invite link. Also, only owners can revoke or resend
owner invitations.
Mostly, this is a change in ordering to make more sense, but we also
fix several names that were clearly confusing.
We restore the convention that each endpoint has the same title at the
top of the page as what we have in the sidebar menu, which appears to
have been violated in many recent updates to API documentation.
api docs filenames are basically the operationId of their endpoint
in zulip.yaml with `_` replaced by `-`. But some operationIds have
changed, so change the affected filenames. Make changes in other
files accordingly.
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.
This adds support for a "spoiler" syntax in Zulip's markdown, which
can be used to hide content that one doesn't want to be immediately
visible without a click.
We use our own spoiler block syntax inspired by Zulip's existing quote
and math block markdown extensions, rather than requiring a token on
every line, as is present in some other markdown spoiler
implementations.
Fixes#5802.
Co-authored-by: Dylan Nugent <dylnuge@gmail.com>
This commits adds restriction on admins to set message retention policy.
We now only allow only organization owners to set message retention
policy.
Dropdown for changing retention policy is disabled in UI for admins also.
This new endpoint returns a 'user' dictionary which, as of now,
contains a single key 'is_subscribed' with a boolean value that
represents whether the user with the given 'user_id' is subscribed
to the stream with the given 'stream_id'.
Fixes#14966.
We're migrating to using the cleaner zulip.com domain, which involves
changing all of our links from ReadTheDocs and other places to point
to the cleaner URL.
Slack owners and primary owners will be mapped to zulip
realm owners on import.
Previously, we mapped the owner and primary owner roles of slack
to realm admins in zulip. As we have added ROLE_REALM_OWNER in
8bbc074, we now map slack owners and primary owners to owners in
zulip.
Tests are modified for checking all the 3 cases-
- Slack workspace primary owner
- Slack workspace owner
- Slack workspace admin
This commit also has docs changes in 'import-from-slack.md'.
OneLogin has removed the app that these instructions used to rely on.
This app choice should be more stable, as there are other providers
that rely on it in their instructions for setting them up with OneLogin.
Ideally, in the future, we'll get our own app added to OneLogin's app
catalogue, which will simplify the setup process for administrators.
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>
This commit replaces fa-file-text-o with fa-file-code-o which is a
better signal for the "view source" action. It also deletes a single
line comment that had suggested the change once we moved into font
awesome 4, which Aditya Bansal <adi.bansal241996@gmail.com> helped
out in doing, first via
91962aa6ab and most recently via
75ae94e459 with several commits in
between.
* This feature is currently only visible to admins.
* Locally echoed messages are also updated.
* Add UI for editing stream if user is admin.
* Show propagate mode selector if either stream or topic changed.
This completes the implementation of support for moving a topic to
another stream by adding a basic UI for it.
Fixes#6427, which was previously the most-upvoted issue request in
Zulip.
There are likely to be a bunch of follow-up UI improvements on top of
this change to fully flesh out the feature.
This page isn't polished properly and I'm not sure it's the best
decision tree here, but it's definitely better to have this page than
not, and we can always adjust forward.
Fixes#10033.
We've completed the production performance testing that had been
blocking us from advertising this feature, so we're declaring the
feature implemented by documenting it.
As of this commit, you need to edit fields using `manage.py shell` to
configure it and manually configure the cron job, but those should be
addressed in the next few days.
Fixes#106.
For privacy-minded folks who don't want to leak the
information of whether they're online, this adds an
option to disable sending presence updates to other
users.
The new settings lies in the "Other notification
settings" section of the "Notification settings"
page, under a "Presence" subheading.
Closes#14798.
This adds a new realm setting: default_code_block_language.
This PR also adds a new widget to specify a language, which
behaves somewhat differently from other widgets of the same
kind; instead of exposing methods to the whole module, we
just create a single IIFE that handles all the interactions
with the DOM for the widget.
We also move the code for remapping languages to format_code
function since we want to preserve the original language to
decide if we override it using default_code_clock_language.
Fixes#14404.
Here we have migrated checkboxes of all general notifications to the table.
By general notifications we mean, Mobile, Email, Desktop audio, and visual
notifications.
This is a part of a bigger migration to simply our notifications setting
changing infrastructure for all streams and individual streams. Later we
will add more row to this for different categories of notifications in
addition to the current ones ("Streams" and "PMs, mentions, alerts").
Fixes: #12182.
The matrix integration folder in python-zulip-api changed its name
from matrix to bridge_with_matrix but this was not reflected in
the docs. Change the docs accordingly.
Solves issue #545 in the python-zulip-api directory.
This refactors remove_reaction in python_examples.py to validate the
result with validate_against_openapi_schema. Minor changes and some
additions have been made to the OpenAPI format data for
/messages/{message_id}/reactions endpoint.
This refactors add_reaction in python_examples.py to use the
openapi_test_function decorator and validate result with
validate_against_openapi_schema. Minor changes have been made to the
OpenAPI format data for /messages/{message_id}/reactions endpoint.
This also adds add-emoji.md to templates/zerver/api and adds
add-emoji to rest-endpoints.md (templates/zerver/help/include).
This extends our email address visibility settings to deny access to
user email addresses even to organization administrators.
At the moment, they can of course change the setting (which leaves an
audit trail), but in the future only organization owners will be able
to change that setting.
While we're at this, we rewrite the settings_data.js test to cover all
the cases in a more consistent way.
Fixes#14111.
This adds update_user to python_examples.py in zerver/openapi.
This also adds update-user.md to templates/zerver/api and adds
update-user to rest-endpoints.md (templates/zerver/help/include).
This adds deactivate_user to python_examples.py in zerver/openapi.
This also adds delete-user.md to templates/zerver/api and adds
delete-user to rest-endpoints.md (templates/zerver/help/include).
This adds get_single_user to python_examples.py in zerver/openapi.
This also adds get-single-user.md to templates/zerver/api and adds
get-single-user to rest-endpoints.md (templates/zerver/help/include).
This commit includes a new `stream_post_policy` setting,
by replacing the `is_announcement_only` field from the Stream model,
which is done by mirroring the structure of the existing
`create_stream_policy`.
It includes the necessary schema and database migrations to migrate
the is_announcement_only boolean field to stream_post_policy,
a smallPositiveInteger field similar to many other settings.
This change is done to allow organization administrators to restrict
new members from creating and posting to a stream. However, this does
not affect admins who are new members.
With many tweaks by tabbott to documentation under /help, etc.
Fixes#13616.
Closes#13484.
These options tell zulip whether to prefer the plaintext or html version
of the email message. prefer-text is the default behavior, so including
the option doesn't change anything as of now, but we're adding it to
prepare to potentially change the default behavior in the future.
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.
For new user onboarding, it's important for it to be easy to verify
that Zulip's mobile push notifications work without jumping through
hoops or potentially making mistakes. For that reason, it makes sense
to toggle the notification defaults for new users to the more
aggressive mode (ignoring whether the user is currently actively
online); they can set the more subtle mode if they find that the
notifications are annoying.
Adds required API and front-end changes to modify and read the
wildcard_mentions_notify field in the Subscription model.
It includes front-end code to add the setting to the user's "manage
streams" page. This setting will be greyed out when a stream is muted.
The PR also includes back-end code to add the setting the initial state of
a subscription.
New automated tests were added for the API, events system and front-end.
In manual testing, we checked that modifying the setting in the front end
persisted the change in the Subscription model. We noticed the notifications
were not behaving exactly as expected in manual testing; see
https://github.com/zulip/zulip/issues/13073#issuecomment-560263081 .
Tweaked by tabbott to fix real-time synchronization issues.
Fixes: #13429.
* Moves "Management commands" to a top-level section.
* Moves "Scalability" as a subsection at the bottom of "Requirements".
* Moves "Monitoring" as a subsections at the bottom of "Troubleshooting".
* Replaces "API and your Zulip URL" with a link to REST API docs. This
documentation text has been irrelevant for some time.
* Removes maintain-secure-upgrade from the TOC but the file remains to
avoid breaking old links from release blog posts and emails.
This change makes it possible for users to control the notification
settings for wildcard mentions as a separate control from PMs and
direct @-mentions.
Merges the "Upgrades" section from production/maintain-secure-upgrade.md
with production/modifying-zulip.md.
Contains significant textual changes by tabbott to read more clearly.
- Merges the "Backups" section from production/maintain-secure-upgrade.md
with existing "Backups" section in production/export-and-import.md.
- Cleans up and makes content more clear/explicit.
- Adds short missing section on how to use wal-e configuration.
- Removes a lot of previously duplicate text explaining the difference between
the tools.
- Various textual tweaks by tabbott.
Fixes#13184 and resolves#293.
When a user performs a search that might contain historical public
streams messages that the user has access to (but doesn't because
we're searching the user's own personal history), we add a notice
above the first search result to let the user know that not all
messages may have been searched.
Fixes#12036.
These docs had a number of typos, and also didn't fully clarify how to
handle lists of integers for `pm-with`.
Also makes some tweaks to the user docs to make this clearer as well.
Fixes#13167.
Add ability to search entire message history of all public streams at
once. It includes all subscibed, non subscribed public streams messages
and even historical public stream messages sent before user had joined
an organization or stream.
Fixes#8859.
Delete trailing newlines from all files, except
tools/ci/success-http-headers.txt and tools/setup/dev-motd, where they
are significant, and static/third, where we want to stay close to
upstream.
Signed-off-by: Anders Kaseorg <anders@zulipchat.com>