* Fix more visual issues with the audio player

- Add horizontal baseline in the middle of waveform
- Fix audio player colors in light theme
- Use audio element instead of web audio API
- Do not render any bars until the file is loaded
- Do not allow interactions with waveform until the file is loaded

* Fix code style issue

Fixes #10991

* Add audio uploads

Fix #4827

Accept uploads of OGG, WAV, FLAC, OPUS and MP3 files, and converts
them to OGG. Media attachments get a new `audio` type. In the UI,
audio uploads are displayed identically to video uploads.

* Improve code style

* Put poll options behind CWs in WebUI

* Put polls behind CWs on public pages

* Add poll icon to public pages CWs

* Revert to not showing an icon in the CW button

* Fix poll visibility on public pages

* Revert "Fix poll visibility on public pages"

This reverts commit 54a9608add.

* Revert "Change poll options to alphabetic letters when status text is hidden"

This reverts commit c53d673262.

This click handler only activates on left-click, resolving #10798.
This matches behavior in status_content.js, as added in #536

* Fix null error in status component when determining showMedia state

Also update the showMedia value if the status passed to the
component changes

* Refactor media visibility computation into a defaultMediaVisibility function

* Fix default media visibility with reblogs

* Move control of media visibility to parent component

* Add keyboard shortcut to toggle media visibility

Fix #10569

The clickable div is positioned under the account avatar and covers
all empty space below it to the end of the status.

* Add blurhash

* Use fallback color for spoiler when blurhash missing

* Federate the blurhash and accept it as long as it's at most 5x5

* Display unknown media attachments as blurhash placeholders

* Improve style of embed actions and spoiler button

* Change blurhash resolution from 3x3 to 4x4

* Improve dependency definitions

* Fix code style issues

* unrequired argument

* unrequired argument

* Add polls

Fix #1629

* Add tests

* Fixes

* Change API for creating polls

* Use name instead of content for votes

* Remove poll validation for remote polls

* Add polls to public pages

* When updating the poll, update options just in case they were changed

* Fix public pages showing both poll and other media

* Never return empty participants for conversations

Fixes #10068

* Fix client-side crash when conversations have no participants

fix #10045

* Avoid two-step rendering of statuses as much as possible

Cache width shared by Video player, MediaGallery and Cards at the
ScrollableList level, pass it down through StatusList and Notifications.

* Adjust scroll when new preview cards appear

* Adjust scroll when statuses above the current scroll position are deleted

* Refactor uses of icons to an Icon component in web UI

* Refactor options passed to the Icon component

* Make tests work with absolute component paths

Fix #4716

* Include preview cards in status entity in REST API

* Display preview card in-stream

* Improve in-stream display of preview cards

* Revert "Fix some icon names changed by the Font Awesome 5. (#8796)"

This reverts commit 3f9ec3de82.

* Revert "Migrate to font-awesome 5.0. (#8799)"

This reverts commit 8bae14591b.

* Revert "Fix some icons names, unavailable in fontawesome5 (free license). (#8792)"

This reverts commit b9c727a945.

* Revert "Update the icon name changed by the Font Awesome 5. (#8776)"

This reverts commit 17af4d27da.

* Revert "Add bot icon to bot avatars and migrate to newer version of Font Awesome (#8484)"

This reverts commit 4b794e134d.

Show "read more" link on overly long in-stream statuses

Fix #8192

* Pass through video description as necessary.

* Add title to video, matching aria-label.

* Give focused status a sensible aria-label for screen readers

Fix #8192

* Use content warning in aria-label unless expanded

This includes clicks on hashtags, mentions, display names and media in the
timeline; and usernames in reply-indicator, detailed status, and the boost
modal.

* Add keyword filtering

    GET|POST       /api/v1/filters
    GET|PUT|DELETE /api/v1/filters/:id

- Irreversible filters can drop toots from home or notifications
- Other filters can hide toots through the client app
- Filters use a phrase valid in particular contexts, expiration

* Make sure expired filters don't get applied client-side

* Add missing API methods

* Remove "regex filter" from column settings

* Add tests

* Add test for FeedManager

* Add CustomFilter test

* Add UI for managing filters

* Add streaming API event to allow syncing filters

* Fix tests