* Change move handler to carry blocks and mutes over

When user A blocks user B and B moves to a new account C, make A block C
accordingly.

Note that it only works if A's instance is aware of the Move, that is,
if B is on A's instance or has followers there.

* Also notify instances with known people blocking you when moving

* Add automatic account notes when blocking/muting an account that had no note

* Add UserNote model

* Add UI for user notes

* Put comment in relationships entity

* Add API to create user notes

* Copy user notes to new account when receiving a Move activity

* Address some of the review remarks

* Replace modal by inline edition

* Please CodeClimate

* Button design changes

* Change design again

* Cancel note edition when pressing Escape

* Fixes

* Tweak design again

* Move “Add note” item, and allow users to add notes to themselves

* Rename UserNote into AccountNote, rename “comment” Relationship attribute to “note”

Regression from #14145

- Change audio files to not be stripped of metadata
- Automatically extract cover art from audio if it exists
- Add `thumbnail` parameter to `POST /api/v1/media`, `POST /api/v2/media` and `PUT /api/v1/media/:id`
- Add `icon` to represent it in attachments in ActivityPub
- Fix `preview_url` containing URL of missing missing image when there is no thumbnail instead of null
- Fix duration of audio not being displayed on public pages until the file is loaded

* Split media cleanup from reject-media domain blocks to its own service

* Slightly improve ClearDomainMediaService error handling

* Lower DomainClearMediaWorker to lowest-priority queue

* Do not catch ActiveRecord::RecordNotFound in domain block workers

* Fix DomainBlockWorker spec labels

* Add some specs

* Change domain blocks to immediately mark accounts as suspended

Rather than doing so sequentially, account after account, while cleaning
their data. This doesn't change much about the time the block takes to
complete, but it immediately prevents interaction with the blocked domain,
while up to now, it would only be guaranteed when the process ends.

* Fix serialization of replies when some of them are URIs

Fixes #13956

* Add test

Fixes #13757

* Bump doorkeeper from 5.3.3 to 5.4.0

Bumps [doorkeeper](https://github.com/doorkeeper-gem/doorkeeper) from 5.3.3 to 5.4.0.
- [Release notes](https://github.com/doorkeeper-gem/doorkeeper/releases)
- [Changelog](https://github.com/doorkeeper-gem/doorkeeper/blob/master/CHANGELOG.md)
- [Commits](https://github.com/doorkeeper-gem/doorkeeper/compare/v5.3.3...v5.4.0

)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

* Fix tests

* Fix use of Doorkeeper::AccessToken.find_or_create_for

* Fix tests?

Co-authored-by: dependabot-preview[bot] <27856297+dependabot-preview[bot]@users.noreply.github.com>
Co-authored-by: Thibaut Girka <thib@sitedethib.com>

* Fix sr locale being selected over sr-Latn

* Update tests

Fix #12613

* Add remote only to public timeline

* Fix code style

* Improve RSS entries for statuses

- Render polls in both accounts and tags serializers
- Refactor RSS serializers
- Change title preview to include ellipsis when truncated
- Change title preview to show CW instead of toot text
- Add tests

* Remove title from OEmbed serialization

Twitter doesn't serialize title either, and tihs allows us to move the
title formatting code to the RSS serializers.

Fixes #13612

This reverts commit 05756c9a.

Also:

- Fix locks not being removed when jobs go to the dead job queue
- Add UI for managing locks to the Sidekiq dashboard
- Remove unused Sidekiq workers

Fix #13349

Mastodon enforces the “sensitive” flag on media attachments whenever a toot
is posted with a Content Warning. However, it does so *after* potentially
converting the Content Warning to toot text (when there is no toot text),
which leads to inconsistent and surprising behavior for API clients.
This commit fixes this inconsistency.

* Bump sidekiq from 5.2.7 to 6.0.0

Bumps [sidekiq](https://github.com/mperham/sidekiq) from 5.2.7 to 6.0.0.
- [Release notes](https://github.com/mperham/sidekiq/releases)
- [Changelog](https://github.com/mperham/sidekiq/blob/master/Changes.md)
- [Commits](https://github.com/mperham/sidekiq/compare/v5.2.7...v6.0.0

)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

* Sidekiq::Logger.logger -> Sidekiq.logger

* Drop support Ruby 2.4

* update

Co-authored-by: dependabot-preview[bot] <27856297+dependabot-preview[bot]@users.noreply.github.com>
Co-authored-by: Yamagishi Kazutoshi <ykzts@desire.sh>

* Move submit button to the top of the edit page

* Duplicate save button on long form

* Fix click submit on profile spec

* Fix user agreement not being verified

* Fix tests

* Fix up agreement field being dismissed

- Disallow links with relative paths
- Disallow iframes with non-http protocols and relative paths

Close #13037

Instead of returning a signature verification error, pretend there
was no signature (i.e., this does not allow access to resources that
need a valid signature), so public resources can still be fetched

Fix #13011

* Search account domain in lowercase

* fix rubocop error

* fix spec/models/account_spec.rb

Revert #12741