The vast majority of deployments do not need landing page assets
generated every deploy, which takes more than 15s. This also removes
them from built tarballs, which also do not need them.
This commit adds two drop-down settings in 'SETTINGS / NOTIFICATIONS'
and 'SETTINGS / DEFAULT USER SETTINGS'.
The new settings lie in a new section named "Topic notifications",
just below the "Noification triggers" section.
Label: "Automatically follow topics"
Options: "Topics I participate in", "Topics I send a message to",
"Topics I start", and "Never".
Label: "Automatically unmute topics in muted streams"
Options: "Topics I participate in", "Topics I send a message to",
"Topics I start", and "Never".
Fixes#25914.
This commit adds two user settings, named
* `automatically_follow_topics_policy`
* `automatically_unmute_topics_in_muted_streams_policy`
The settings control the user's preference on which topics they
will automatically 'follow' or 'unmute in muted streams'.
The policies offer four options:
1. Topics I participate in
2. Topics I send a message to
3. Topics I start
4. Never (default)
There is no support for configuring the settings through the UI yet.
Adds warning banner to the organization settings overlay/tabs
for demo organizations. For owners, clicking on the link in the
banner opens a modal to convert the demo organization into a
permanent organization.
For admins that are not owners, clicking on the link will go
to the help center article on demo organizations.
Non-admin users will not see the warning banner.
The modal for converting a demo organization requires the owner
to have set their email address. Once the owner's email address
is set, then the organization can be made permanent by changing
the subdomain of the organization. The deletion date for the
demo organization will be removed as part of updating the
subdomain.
The organization owner must also have updated the organization
type to be any value other than unsepecified to convert the
demo organization to a permanent organization. The modal's
submit button will be disabled if that is the value for the
organization type in the form. The demo organizations created
in the dev environment now have their organization type set to
unspecified on creation.
This is a part of #19523.
Co-authored by: Lauryn Menard <lauryn@zulip.com>
In commit 268f858f3, we removed the "realm_filters" event from the
schemas that we test in `zerver/lib/event_schemas.py`, but the event
is still documented (as deprecated) in the api/get-events doc.
Updates `tools/check_schemas` to not print a warning for an event
schema in the OpenAPI documentation if it's include in the list of
deprecated events list.
Letting the clock tick without a reason introduces the
possibility of nondeterministic test failures depending on the execution
time. The default value when not specified is tick=True, which makes it
easy to miss.
The rule doesn't prohibit setting tick=True, as perhaps there will be
tests wanting to use that feature on purpose, but such a test should
explicitly set it to make the intent clear.
Refactor tools/lib/provision_inner to conditionally write activation commands to user's bash profile based on the host machine type. Automatic activation now skipped for native linux containers.
Fixes#15029
Semgrep 0.118.0 changed the default of --scan-unknown-extensions to
false. It also seems that it no longer respects --lang (or never
did), so rename the config file to reflect that it only includes
Python rules, to make it clear that additional languages will require
separate config files.
Signed-off-by: Anders Kaseorg <anders@zulip.com>
This commit creates a new file integration_url_modal.js which
now contains the code for showing integration url modal.
Since show_generate_integration_url_modal is used in multiple
places, this change helps us in avoiding import cycles.
This commit creates a new file user_deactivation_ui.js which
now contains the code for showing deactivation modal for user
and bots.
Since confirm_deactivation and confirm_bot_deactivation functions
are used in multiple places, this change helps us in avoiding
import cycles.
This commit moves initialize_custom_pronouns_type_fields,
initialize_custom_user_type_fields, initialize_custom_date_type_fields
and append_custom_profile_fields functions to the new file
custom_profile_fields_ui.js from settings_account.js since
they are used for both showing custom profile fields in
"Profile" settings panel and "Edit user" form shown in
user profile modal. This change also helps us in avoiding
import cycles.
We already allowed reruns for failing tests, and this adds
the ability to rerun tests that succeeded as well, which is
helpful for debugging flaky tests.
The intent behind this commit is to tidy up how we handle user info
popovers. The first step is to move everything related to them into
its own module. This commit should not have any functional changes.
The type annotation for functools.partial uses unchecked Any for all
the function parameters (both early and late). returns.curry.partial
uses a mypy plugin to check the parameters safely.
https://returns.readthedocs.io/en/latest/pages/curry.html
Signed-off-by: Anders Kaseorg <anders@zulip.com>
This is a preparatory commit before we migrate `user_group_popover`
from Bootstrap to Tippy library.
The previous implementation was weirdly sharing the logic around
`current_message_info_popover_elem` with the user info popovers based
on a message; very likely an unfortunate latent bug caused by
copy/paste.
To address that, we need to add dedicated functions like
get_user_group_popover_items to avoid breaking keyboard navigation
with this extraction.
We want to reject ambiguous type annotations that set ApiParamConfig
inside a Union. If a parameter is Optional and has a default of None, we
prefer Annotated[Optional[T], ...] over Optional[Annotated[T, ...]].
This implements a check that detects Optional[Annotated[T, ...]] and
raise an assertion error if ApiParamConfig is in the annotation. It also
checks if the type annotation contains any ApiParamConfig objects that
are ignored, which can happen if the Annotated type is nested inside
another type like List, Union, etc.
Note that because
param: Annotated[Optional[T], ...] = None
and
param: Optional[Annotated[Optional[T], ...]] = None
are equivalent in runtime prior to Python 3.11, there is no way for us
to distinguish the two. So we cannot detect that in runtime.
See also: https://github.com/python/cpython/issues/90353
The goal of typed_endpoint is to replicate most features supported by
has_request_variables, and to improve on top of it. There are some
unresolved issues that we don't plan to work on currently. For example,
typed_endpoint does not support ignored_parameters_supported for 400
responses, and it does not run validators on path-only arguments.
Unlike has_request_variables, typed_endpoint supports error handling by
processing validation errors from Pydantic.
Most features supported by has_request_variables are supported by
typed_endpoint in various ways.
To define a function, use a syntax like this with Annotated if there is
any metadata you want to associate with a parameter, do note that
parameters that are not keyword-only are ignored from the request:
```
@typed_endpoint
def view(
request: HttpRequest,
user_profile: UserProfile,
*,
foo: Annotated[int, ApiParamConfig(path_only=True)],
bar: Json[int],
other: Annotated[
Json[int],
ApiParamConfig(
whence="lorem",
documentation_status=NTENTIONALLY_UNDOCUMENTED
)
] = 10,
) -> HttpResponse:
....
```
There are also some shorthands for the commonly used annotated types,
which are encouraged when applicable for better readability and less
typing:
```
WebhookPayload = Annotated[Json[T], ApiParamConfig(argument_type_is_body=True)]
PathOnly = Annotated[T, ApiParamConfig(path_only=True)]
```
Then the view function above can be rewritten as:
```
@typed_endpoint
def view(
request: HttpRequest,
user_profile: UserProfile,
*,
foo: PathOnly[int],
bar: Json[int],
other: Annotated[
Json[int],
ApiParamConfig(
whence="lorem",
documentation_status=INTENTIONALLY_UNDOCUMENTED
)
] = 10,
) -> HttpResponse:
....
```
There are some intentional restrictions:
- A single parameter cannot have more than one ApiParamConfig
- Path-only parameters cannot have default values
- argument_type_is_body is incompatible with whence
- Arguments of name "request", "user_profile", "args", and "kwargs" and
etc. are ignored by typed_endpoint.
- positional-only arguments are not supported by typed_endpoint. Only
keyword-only parameters are expected to be parsed from the request.
- Pydantic's strict mode is always enabled, because we don't want to
coerce input parsed from JSON into other types unnecessarily.
- Using strict mode all the time also means that we should always use
Json[int] instead of int, because it is only possible for the request
to have data of type str, and a type annotation of int will always
reject such data.
typed_endpoint's handling of ignored_parameters_unsupported is mostly
identical to that of has_request_variables.
**Background**
User groups are expected to comply with the DAG constraint for the
many-to-many inter-group membership. The check for this constraint has
to be performed recursively so that we can find all direct and indirect
subgroups of the user group to be added.
This kind of check is vulnerable to phantom reads which is possible at
the default read committed isolation level because we cannot guarantee
that the check is still valid when we are adding the subgroups to the
user group.
**Solution**
To avoid having another transaction concurrently update one of the
to-be-subgroup after the recursive check is done, and before the subgroup
is added, we use SELECT FOR UPDATE to lock the user group rows.
The lock needs to be acquired before a group membership change is about
to occur before any check has been conducted.
Suppose that we are adding subgroup B to supergroup A, the locking protocol
is specified as follows:
1. Acquire a lock for B and all its direct and indirect subgroups.
2. Acquire a lock for A.
For the removal of user groups, we acquire a lock for the user group to
be removed with all its direct and indirect subgroups. This is the special
case A=B, which is still complaint with the protocol.
**Error handling**
We currently rely on Postgres' deadlock detection to abort transactions
and show an error for the users. In the future, we might need some
recovery mechanism or at least better error handling.
**Notes**
An important note is that we need to reuse the recursive CTE query that
finds the direct and indirect subgroups when applying the lock on the
rows. And the lock needs to be acquired the same way for the addition and
removal of direct subgroups.
User membership change (as opposed to user group membership) is not
affected. Read-only queries aren't either. The locks only protect
critical regions where the user group dependency graph might violate
the DAG constraint, where users are not participating.
**Testing**
We implement a transaction test case targeting some typical scenarios
when an internal server error is expected to happen (this means that the
user group view makes the correct decision to abort the transaction when
something goes wrong with locks).
To achieve this, we add a development view intended only for unit tests.
It has a global BARRIER that can be shared across threads, so that we
can synchronize them to consistently reproduce certain potential race
conditions prevented by the database locks.
The transaction test case lanuches pairs of threads initiating possibly
conflicting requests at the same time. The tests are set up such that exactly N
of them are expected to succeed with a certain error message (while we don't
know each one).
**Security notes**
get_recursive_subgroups_for_groups will no longer fetch user groups from
other realms. As a result, trying to add/remove a subgroup from another
realm results in a UserGroup not found error response.
We also implement subgroup-specific checks in has_user_group_access to
keep permission managing in a single place. Do note that the API
currently don't have a way to violate that check because we are only
checking the realm ID now.
Fixes#11767.
Previously multi-character emoji sequences weren't matched in the
emoji regex, so we'd convert the characters to separate images,
breaking the intended display.
This change allows us to match the full emoji sequence, and
therefore show the correct image.
This saves the blue box position as state on the location
in brower history, with `history.replaceState`.
The position is restored when a narrow is activated.
Fixes#20066.
Tweaked provision script to run successfully in Fedora 38 and
included a script to build the groonga libs from source because
the packages in Fedora repos are outdated.
There is a major version jump from the last supported version (F34)
which is EOL so references and support for older versions were
removed.
Fixes: #20635
It's relatively rare that you want to read the coverage report
if the coverage tests pass. This allows devs to get quicker
feedback. Particularly on tricky rebases this can be a real
time saver. It takes about a minute to write the coverage
report on my box.
Dropping support for url_prefix for RealmPlayground, the server now uses
url_template instead only for playground creation, retrieval and audit
logging upon removal.
This does the necessary handling so that url_template is expanded with
the extracted code.
Fixes#25723.
Signed-off-by: Zixuan James Li <p359101898@gmail.com>
Restore the default django.utils.log.AdminEmailHandler when
ERROR_REPORTING is enabled. Those with more sophisticated needs can
turn it off and use Sentry or a Sentry-compatible system.
Signed-off-by: Anders Kaseorg <anders@zulip.com>
Translators benefit from the extra information in the field names, and
need the reordering freedom that isn’t available with multiple
positional fields.
Signed-off-by: Anders Kaseorg <anders@zulip.com>
This fixes some deprecation use of the APIs, including using "new"
instead of "true" for the "headless" flag when launching puppeteer and
using $$ instead of $x when using XPath selectors.
We also use {waitUntil: "networkidle2"} to fix the issue of webhook bot
avatar not being loaded consistently when generating the screenshots
(this happened to webhooks like Slack and Harbor).
Positioning of the clip area is adjusted to take the new grid layout
into account.
This allows the user to skip generating screenshots up to certain
integration when working through generating screenshots for all
integrations.
This also allow the user to select a number of integrations to
selectively generate screenshots for.
Release notes in GitHub have significant-newlines, which makes our
canonical `changelog.md` content look not-great -- and the relative
links are also broken, as they have the wrong relative path.
Switch to linking to the canonical release notes on ReadTheDocs, now
that those have proper anchors.
By relocating helper methods into a mixin class, we can be more flexible
with managing transactions in test cases, without always forcing the
django.test.TestCase behavior of always putting the test case into an
atomic transaction.
We include a check for side effects in ZulipTransactionTestCase. It only
checks for the set of row ids in all tables before and after each test.
It is not a comprehensive check for side effects, but should be
sufficient for the basics without much performance overhead.
Previously, the "assets" subdirectory of various bots was not
being copied to the "static/generated/bots/" folder, which
resulted in the documentation on some pages not loading at all.
If the number of threads is not specified
while profiling then use a single thread. This is
because profiling across multiple threads (earlier
default behaviour) may obscure the accurate
measurement of which functions are the most costly
due to thread blocking.
Signed-off-by: Akshat <akshat25iiit@gmail.com>
This was only necessary for PGroonga 1.x, and the `pgroonga` schema
will most likely be removed at some point inthe future, which will
make this statement error out.
Drop the unnecessary statement.
This raises an error when we forget to make migration non-atomic when
doing it in batches. BATCH_SIZE seems to be a good indicator for when
we do batching with few early exceptions.
Signed-off-by: Zixuan James Li <p359101898@gmail.com>
This in-progress feature was started in 2018 and hasn't
been worked on much since. It's already in a broken state,
which makes it hard to iterate on the existing search bar
since it's hard to know how those changes will affect search
pills.
We do still want to add search pills eventually, and when
we work on that, we can refer to this diff to readd the
changes back.
When using a start date before the first commit to a repo, we should
include the repo's entire history (up to the end date) in our totals.
Instead, we were using a range like "..{upper_version}", which in Git
revision-range syntax means the start of the range is HEAD -- so the
range was empty.
Fix that by leaving out the ".." when we want no left endpoint.
This prevents `get_user_profile_by_api_key` from doing a sequential
scan.
Doing this requires moving the generation of initial api_key values
into the column definition, so that even bare calls to
`UserProfile.objects.create` (e.g. from tests) call appropriately
generate a random initial value.
Creates a custom linter rule for `zerver/openapi/zulip.yaml` to
only allow lowercase versions of "true", "false" and "null".
Updates existing documentation for new rules.
This commit adds a new test to check how the visibility policy updates
when moving messages to a topic that didn't exist previously.
This test also helps us adding coverage for the code which just
skips setting visibility_policy if there is no need to update the
value because both previous and new value of visibility policy
is INHERIT. The "actions/message_edit.py" file has 100% coverage
now and thus is removed from "not_yet_fully_covered" list.
Adds test coverage for the error sent for editing a scheduled
message that was successfully sent.
`zerver/actions/scheduled_messages.py` now has 100% test coverage
again.
Test coverage for `zerver/actions/message_delete.py`.
Both callers of this function would already return if there were
no Messages specified to delete, which is why existing tests did
not cover this.
This commit migrates `scroll_util.js` to typescript. I made a helper
type `JQueryOrZJQuery` for the argument of `get_scroll_element` instead
of adding a `__zjquery` property to the global JQuery object because it
isn't being used anywhere outside of this function and hence it makes
sense to have a little helper type than to add the property to the global
object.
Created the new `compose_textarea` and moved event handlers for `#compose_textarea`
from `ui` to this new module so that it is now responsible for initializing event handlers
for compose_textarea instead of `ui` module.
This commit renames 'settings_muted_topics.js'
to 'settings_user_topics.js' because the file now
supports the settings for topics with any visibility_policy,
not just MUTED.
It also renames the corresponding test file.
Added function parameter types, return type, and types of local
varaibles. Added a `null` check for `raw_data` before `JSON.parse`.
Created a type `FormData` and an export type `LocalStorage` to
imporve conciseness and clearity.
Type `LocalStorage` is exported because it might be used in other
files based on an observation that many files have imported `localstorage`.
This helps reduce the amount of import cycles we have in the compose
code path following the migration to a fancier stream input.
`compose_closed_ui.initialize()` was moved further down in the
initialization order because it relies on the dropdown widget
to be defined.
This removes the validator argument for 0423_realmfilter_url_template,
which do not really alter the database schema. It otherwise fails
the migration because the filter_format_validator function is removed.
Migration 0094_realm_filter_url_validator is modified because we can no
longer refer to filter_format_validator.
Signed-off-by: Zixuan James Li <p359101898@gmail.com>
This swaps out url_format_string from all of our APIs and replaces it
with url_template. Note that the documentation changes in the following
commits will be squashed with this commit.
We change the "url_format" key to "url_template" for the
realm_linkifiers events in event_schema, along with updating
LinkifierDict. "url_template" is the name chosen to normalize
mixed usages of "url_format_string" and "url_format" throughout
the backend.
The markdown processor is updated to stop handling the format string
interpolation and delegate the task template expansion to the uri_template
library instead.
This change affects many test cases. We mostly just replace "%(name)s"
with "{name}", "url_format_string" with "url_template" to make sure that
they still pass. There are some test cases dedicated for testing "%"
escaping, which aren't relevant anymore and are subject to removal.
But for now we keep most of them as-is, and make sure that "%" is always
escaped since we do not use it for variable substitution any more.
Since url_format_string is not populated anymore, a migration is created
to remove this field entirely, and make url_template non-nullable since
we will always populate it. Note that it is possible to have
url_template being null after migration 0422 and before 0424, but
in practice, url_template will not be None after backfilling and the
backend now is always setting url_template.
With the removal of url_format_string, RealmFilter model will now be cleaned
with URL template checks, and the old checks for escapes are removed.
We also modified RealmFilter.clean to skip the validation when the
url_template is invalid. This avoids raising mulitple ValidationError's
when calling full_clean on a linkifier. But we might eventually want to
have a more centric approach to data validation instead of having
the same validation in both the clean method and the validator.
Fixes#23124.
Signed-off-by: Zixuan James Li <p359101898@gmail.com>
This will later be used to expand matching linkifier patterns.
Making it nullable for now, but we will make it required in
the APIs.
As a part of this transition, we temporarily make url_format_string
nullable as well, which will be later removed. This allows us to
switch to populating url_template without caring about passing
url_format_string.
Note that the validators are imported in the migration because Django
otherwise diffs it and considers the schema to be different, generating
a migration, failing the "tools/test-migrations" test.
Signed-off-by: Zixuan James Li <p359101898@gmail.com>
If the ID of the scheduled message is passed by the client, we
edit the existing scheduled message instead of creating a new one.
However, this will soon be moved into its own API endpoint.
Removed functions mute_topic and unmute_topic in muted_topics_ui.js
which were using old API endpoints to mute/unmute topics.
In user_topics.js added new function set_user_topic_visibility_policy
which uses new API endpoint `/user_topics` to update the topic's
visibility_policy to visibility_policy passed to
set_user_topic_visibility_policy function as a parameter.
In functions toggle_topic_mute and mute_or_unmute_topic, replaced
the calls of mute_topic and unmute_topic with the new
user_topics.set_user_topic_visibility_policy function.
Added "web/src/user_topics.js" in EXEMPT_FILES in test-js-with-node
as adding function `set_user_topic_visibility_policy` resulted in
user_topics.js losing 100% test coverage.
Fixes#24244
This commit refactors get_realm_user_groups_for_dropdown_list_widget
function to use "group_permission_settings" module instead of
passing variables like "allow_internet_group", etc. individually
for each settings.
We lose some test coverage due to this commit, but that would be
fixed when we add some more group-based settings and allow groups
other than system groups in the group based settings.
This commit adds a new module group_permission_settings.ts
which is used to define configuration options like
allow_owners_group, allow_nobody_group, etc. for group-based
settings similar to GroupPermissionSetting dataclass we have
in backend.
Added type annotations to function parameters, function return
values and local variables. Added neccessary `if` statements to
enforce the objects having proper type before executing the later
operations.
An error type check in the catch block in `update_favicon`
function is added because the statement in the catch block requires
error to be a type `Error` in order to access `error.stack`.
Previously, we had an architecture where CSS inlining for emails was
done at provision time in inline_email_css.py. This was necessary
because the library we were using for this, Premailer, was extremely
slow, and doing the inlining for every outgoing email would have been
prohibitively expensive.
Now that we've migrated to a more modern library that inlines the
small amount of CSS we have into emails nearly instantly, we are able
to remove the complex architecture built to work around Premailer
being slow and just do the CSS inlining as the final step in sending
each individual email.
This has several significant benefits:
* Removes a fiddly provisioning step that made the edit/refresh cycle
for modifying email templates confusing; there's no longer a CSS
inlining step that, if you forget to do it, results in your testing a
stale variant of the email templates.
* Fixes internationalization problems related to translators working
with pre-CSS-inlined emails, and then Django trying to apply the
translators to the post-CSS-inlined version.
* Makes the send_custom_email pipeline simpler and easier to improve.
Signed-off-by: Daniil Fadeev <fadeevd@zulip.com>
This reverts commit 5f4bdfe6bc (#24630).
This was causing Webpack to trigger type checking with the TypeScript
compiler, which is very expensive.
Signed-off-by: Anders Kaseorg <anders@zulip.com>
Primary goal of library replacement is improving execution speed.
This commit should not affect the functionality of the system
or make any changes to it.
Created `WidgetConfig` type which has all the parameter that can be
passed launch(). Except html_heading, html_body, and on_click all
other fields are optional. Therefore, removed checking of undefined
mandatory fields as it will be done by typescript.
Co-authored-by: Hardik Dharmani <Ddharmani99@gmail.com>
Refactored some code as well to avoid unneccesaary `undefined`
checks in `overlays`. To be exact created an action_overlay
object of type `Overlay` such that the `reset_state` is just
`action_overlay = undefined` and having attributes like `$element`
and `close_handler`.
This would ensure that if you have an `active_overlay`, there will
be a registered `close handler` attached to it without needing to
write additional checks for `close_handler` just to satisfy type
checker.
TypeScript doesn't understand Array.prototype.slice.call; rather than dealing with the
type-checking issues around it, we remove it; it was only necessary for ancient browsers where
NodeList isn’t directly iterable.
Remove the winjs specific `getScrollbarWidth` property while we're at it;
WinJS isn't relevant anymore.
Reorders methods due to TypeScript files enforcing define-before-use when
this commit was drafted.
This commit extracts realm creation form html in a new file
realm_creation_form.html as we are reworking the organization
flow as per #24307 and this change would allow us to avoid
duplicating the code.
Some well-intentioned adblockers also block Sentry client-side error
reporting. Provide an endpoint on the Zulip server which forwards to
the Sentry server, so that these requests are not blocked.
Use the built-in HTML escaping of Markup("…{var}…").format(), in order
to allow Semgrep to detect mistakes like Markup("…{var}…".format())
and Markup(f"…{var}…").
Signed-off-by: Anders Kaseorg <anders@zulip.com>
This commit adds 'zerver/lib/email_notifications.py'
to the FILES_WITH_LEGACY_SUBJECT set.
Because the file can have 'subject' in the email sense,
it should be exempted from the 'avoid subject as a var' lint rule.
Updated the title and description in the 'enable-emoticon-translation'
file and renamed the file accordingly. Added a new bullet point for
'time format' in the 'configure-new-user-settings.md' file and updated
the sidebar index by replacing the title 'Use 24-hour time' with
'Change the time format'.
The Django convention is for __repr__ to include the type and __str__
to omit it. In fact its default __repr__ implementation for models
automatically adds a type prefix to __str__, which has resulted in the
type being duplicated:
>>> UserProfile.objects.first()
<UserProfile: <UserProfile: emailgateway@zulip.com <Realm: zulipinternal 1>>>
Signed-off-by: Anders Kaseorg <anders@zulip.com>
Zulip already has integrations for server-side Sentry integration;
however, it has historically used the Zulip-specific `blueslip`
library for monitoring browser-side errors. However, the latter sends
errors to email, as well optionally to an internal `#errors` stream.
While this is sufficient for low volumes of users, and useful in that
it does not rely on outside services, at higher volumes it is very
difficult to do any analysis or filtering of the errors. Client-side
errors are exceptionally noisy, with many false positives due to
browser extensions or similar, so determining real real errors from a
stream of un-grouped emails or messages in a stream is quite
difficult.
Add a client-side Javascript sentry integration. To provide useful
backtraces, this requires extending the pre-deploy hooks to upload the
source-maps to Sentry. Additional keys are added to the non-public
API of `page_params` to control the DSN, realm identifier, and sample
rates.
This commit renames reset_emails_in_zulip_realm function to
reset_email_visibility_to_everyone_in_zulip_realm which makes
it more clear to understand what the function actually does.
This commit also adds a comment explaining what this function
does.
Updates frontend user-facing strings with "private message" or "PM" to
use "direct message" or "DM" respectively instead.
Note that this updates translated strings as well as a few that
are not translated like search suggestions.
Updates `tools/lib/capitalization.py` for some specific strings
that are impacted by these changes, and removes "PM" and "PMs"
from checked strings.