* Refactor shouldUpdateScroll passing

So far, shouldUpdateScroll has been manually passed down from the very top of
the React component hierarchy even though it is a static function common to
all ScrollContainer instances, so replaced that with a custom class extending
ScrollContainer.

* Generalize “press back to close modal” to any modal and to public pages

* Fix boost confirmation modal closing media modal

* Slightly reorder three dots menu on toots to make it more intuitive

- Make “Pin to profile” always appear at the same place
- Add separator to group “Bookmark” and “Pin to profile”
- Fix separator being the first item in some cases

* Fix missing semicolon and keep status_action_bar.js and action_bar.js in sync

* Various dropdown code quality fixes

* Prepare support for privacy selection in boost modal

* Add dropdown for boost privacy in boost confirmation modal

an elegant fix needs to fix the bug in ECMA402

Fix #15280

Also adds the new action bar and blurhash-based background
color to audio and video modals

- Change overlay background to match color of viewed image
- Add interactive reply/boost/favourite buttons to footer of modal
- Change ugly "View context" link to button among the action bar

Fix #11160

* use custom private boost icon for detail status

* only use className

This commit replaces all unnecessarily repeated code for decoding and
embedding blurhash canvases with separate component - <Blurhash>.

Under the hood Blurhash component will use effect dependent on its
props. This gives a few benefits: it will only be re-rendered whenever
the hash or width/height/dummy props update, and will not render if
canvas won't get to the final DOM, because then effect won't fire,
which prevents weird bugs like #14257.

Follow-up on #14260 which only fixed half the call sites

Fixes #14257

- 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

Also only require click-through for interactive embeds.

* Add a visibility icon to status

* Change to using the icon element

* Fix RTL

* Add a public globe

* Fix design issues with sensitive preview cards

* Center “sensitive” label on preview image for interactive cards

* Add “button” role to sensitive preview card text

* Fix audio/video/images/cards not reacting to window resizes in web UI

* Update app/javascript/mastodon/features/audio/index.js

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

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

* Fix audio download button not starting download in web UI

* Fix volume controls on audio and video players in web UI

* Remove download button from video player in web UI

* Use preview card blurhash in WebUI

* Handle sensitive preview cards

Fixes #13536

- Expanding a paused video doesn't autoplay anymore
- Default volume level for the expanded video inherited from the original video

Position/playing state/volume are carried over from the original video player
to the modal, but they're not reported back to the modal as it would require
deeper changes.

The boost count is already removed from private toots,
do the same with direct messages.

* JS-linter: fix trailing comma's

* Configure eslinter to ignore this onchange error.

Blocking a domain is closer to blocking all its users than to a mute
action.

In detailed status component, "More" action bar button wasn't
localized. This commit fixes it according to previously used code.

see 12a9813a0c

Fixes #12770

Fixes #12511

* [WiP] Add hotkey to open media

* Give focus to play/pause button when opening video modal

Move bookmark action in inline statuses from action bar to dropdown

* Add backend support for bookmarks

Bookmarks behave like favourites, except they aren't shared with other
users and do not have an associated counter.

* Add spec for bookmark endpoints

* Add front-end support for bookmarks

* Introduce OAuth scopes for bookmarks

* Add bookmarks to archive takeout

* Fix migration

* Coding style fixes

* Fix rebase issue

* Update bookmarked_statuses to latest UI changes

* Update bookmark actions to properly reflect status changes in state

* Add bookmarks item to single-column layout

* Make active bookmarks red