* Fix error responses in `from` search prefix (addresses mastodon/mastodon#17941)

Using unsupported prefixes now reports a 422; searching for posts from an
account the instance is not aware of reports a 404. TODO: The UI for this
on the front end is abysmal.

Searching `from:username@domain` now succeeds when `domain` is the local
domain; searching `from:@username(@domain)?` now works as expected.

* Remove unused methods on new Error classes as they are not being used

Currently when `raise`d there are error messages being supplied, but
this is not actually being used. The associated `raise`s have been
edited accordingly.

* Remove needless comments

* Satisfy rubocop

* Try fixing tests being unable to find AccountFindingConcern methods

* Satisfy rubocop

* Simplify `from` prefix logic

This incorporates @ClearlyClaire's suggestion (see
https://github.com/mastodon/mastodon/pull/17963#pullrequestreview-933986737).

Accepctable account strings in `from:` clauses are more lenient than
before this commit; for example, `from:@user@example.org@asnteo +cat`
will not error, and return posts by @user@example.org containing the
word "cat". This is more consistent with how Mastodon matches mentions
in statuses. In addition, `from` clauses will not be checked for
syntatically invalid usernames or domain names, simply 404ing when
`Account.find_remote!` raises ActiveRecord::NotFound.

New code for this PR that is no longer used has been removed.

Fixes #17831

* Bump version to 3.5.0rc1

* Various fixes and improvements

* Update AUTHORS.md

* Various fixes and improvements

* Update README.md

* Update fix-duplicates task to 2022_02_10_153119

Also add support for Appeal to AccountMerging#merge_with!

* Update fix-duplicates task to 2022_03_07_094650

* Update fix-duplicates task to 2022_03_09_213005

* Update fix-duplicates task to 2022_03_07_083603

* Update fix-duplicates task to 2022_03_10_060626

* Update fix-duplicates script to 2022_03_07_083603

* Update fix-duplicates task to 2022_03_10_060706

* Update fix-duplicates task to 2022_03_10_060959

* Silence CodeClimate

* Fix null values being included in some indexes

* Update lib/mastodon/migration_helpers.rb

Co-authored-by: Claire <claire.github-309c@sitedethib.com>

* Add documentation link to corruption error message

Co-authored-by: Claire <claire.github-309c@sitedethib.com>

* Add migration tests for hide_network settings migration

* Add tests about suspended/suspended_at

* Add more tests regarding the results of migrations

* Fix migration test regarding stale conflicting remote account

* Add migration tests about AccountConversation

* spelling: account

Signed-off-by: Josh Soref <jsoref@users.noreply.github.com>

* spelling: affiliated

Signed-off-by: Josh Soref <jsoref@users.noreply.github.com>

* spelling: appearance

Signed-off-by: Josh Soref <jsoref@users.noreply.github.com>

* spelling: autosuggest

Signed-off-by: Josh Soref <jsoref@users.noreply.github.com>

* spelling: cacheable

Signed-off-by: Josh Soref <jsoref@users.noreply.github.com>

* spelling: component

Signed-off-by: Josh Soref <jsoref@users.noreply.github.com>

* spelling: conversations

Signed-off-by: Josh Soref <jsoref@users.noreply.github.com>

* spelling: domain.example

Clarify what's distinct and use RFC friendly domain space.

Signed-off-by: Josh Soref <jsoref@users.noreply.github.com>

* spelling: environment

Signed-off-by: Josh Soref <jsoref@users.noreply.github.com>

* spelling: exceeds

Signed-off-by: Josh Soref <jsoref@users.noreply.github.com>

* spelling: functional

Signed-off-by: Josh Soref <jsoref@users.noreply.github.com>

* spelling: inefficiency

Signed-off-by: Josh Soref <jsoref@users.noreply.github.com>

* spelling: not

Signed-off-by: Josh Soref <jsoref@users.noreply.github.com>

* spelling: notifications

Signed-off-by: Josh Soref <jsoref@users.noreply.github.com>

* spelling: occurring

Signed-off-by: Josh Soref <jsoref@users.noreply.github.com>

* spelling: position

Signed-off-by: Josh Soref <jsoref@users.noreply.github.com>

* spelling: progress

Signed-off-by: Josh Soref <jsoref@users.noreply.github.com>

* spelling: promotable

Signed-off-by: Josh Soref <jsoref@users.noreply.github.com>

* spelling: reblogging

Signed-off-by: Josh Soref <jsoref@users.noreply.github.com>

* spelling: repetitive

Signed-off-by: Josh Soref <jsoref@users.noreply.github.com>

* spelling: resolve

Signed-off-by: Josh Soref <jsoref@users.noreply.github.com>

* spelling: saturated

Signed-off-by: Josh Soref <jsoref@users.noreply.github.com>

* spelling: similar

Signed-off-by: Josh Soref <jsoref@users.noreply.github.com>

* spelling: strategies

Signed-off-by: Josh Soref <jsoref@users.noreply.github.com>

* spelling: success

Signed-off-by: Josh Soref <jsoref@users.noreply.github.com>

* spelling: targeting

Signed-off-by: Josh Soref <jsoref@users.noreply.github.com>

* spelling: thumbnails

Signed-off-by: Josh Soref <jsoref@users.noreply.github.com>

* spelling: unauthorized

Signed-off-by: Josh Soref <jsoref@users.noreply.github.com>

* spelling: unsensitizes

Signed-off-by: Josh Soref <jsoref@users.noreply.github.com>

* spelling: validations

Signed-off-by: Josh Soref <jsoref@users.noreply.github.com>

* spelling: various

Signed-off-by: Josh Soref <jsoref@users.noreply.github.com>

Co-authored-by: Josh Soref <jsoref@users.noreply.github.com>

Video files with variable framerates are converted to constant framerate videos
and the output framerate picked by ffmpeg is based on the original file's
container framerate (which can be different from the average framerate).

This means that an input video with variable framerate with about 30 frames per
second on average, but a maximum of 120 fps will be converted to a constant 120
fps file, which won't be processed by other Mastodon servers.

This commit changes it so that input files with VFR and a maximum framerate
above the framerate threshold are converted to VFR files with the maximum frame
rate enforced.

* Remove language detection through cld3

* Update app/helpers/languages_helper.rb

Co-authored-by: Yamagishi Kazutoshi <ykzts@desire.sh>

Co-authored-by: Yamagishi Kazutoshi <ykzts@desire.sh>

- populate the database with some data when testing migrations
- try both one-step and two-step migrations (`SKIP_POST_DEPLOYMENT_MIGRATIONS`)

* Remove leftover database columns from Devise::Models::Rememberable

* Update fix-duplication maintenance script

* Improve errors/warnings in the fix-duplicates maintenance script

Fixes #17297

* Add admin option to remove canonical email blocks from a deleted account

* Add tootctl canonical_email_blocks to inspect and remove canonical email blocks

* Add remove orphans to tootctl statuses remove

* Add REINDEX and change option from vacuum to compression-database

* Changed to extract the deletion target of conversations to a temporary table

* Support progress bar and exceptions when media remove

* Add continue option

* Fix compression to compress

* Remove skip_remove_orphans

* Fix performance of tootctl statuses remove

* Fix model class

* Add trending links

* Add overriding specific links trendability

* Add link type to preview cards and only trend articles

Change trends review notifications from being sent every 5 minutes to being sent every 2 hours

Change threshold from 5 unique accounts to 15 unique accounts

* Fix tests

* Bump chewy from 5.2.0 to 7.2.2

* fix style (codeclimate)

* fix style

* fix style

* Bump chewy from 7.2.2 to 7.2.3

Under certain conditions, files fetched from remotes trigger an error when
being uploaded using OpenStack Swift. This is because in some cases, the
remote server will not return a content-length, so our ResponseWithLimitAdapter
will hold a `nil` value for `#size`, which will lead to an invalid value
for the Content-Length header of the Swift API call.

This commit fixes that by taking the size from the actually-downloaded file
size rather than the upstream-provided Content-Length header value.

Fix regression from #16896

* Bump version to 3.4.2

* Bump version to 3.4.3