Co-authored-by: Saúl Ibarra Corretgé <saghul@jitsi.org>

Reorder the sub-groups (shares, speakers and rest of the participants) always on dominant speaker changes and when participants join or leave.

enableThumbnailReordering flag (enabled by default) will be used to check if the thumbnails needs to be reodred in the UI.

* feat(Filmstrip): Reorder the visible participants in the filmstrip.
The participants are ordered alphabetically and the endpoints with screenshares, shared-videos and dominant speakers (in that order) are bumped to the top of the list. The local participant is also moved to the top left corner as opposed to the bottom right corner.

* squash: Implement review comments.

* squash: store alphabetically sorted list in redux and move shared videos to top.

* squash: Use the DEFAULT_REMOTE_DISPLAY_NAME from interfaceConfig for users without a display name.

When there are only 2 participants in a call, don't show the remote thumbnail,
unless the `disable1On1Mode` config option is set or the local participant pin
themselves.

Also fix properly showing the remote menu.

Specifically, in the bottom sheet (on mobile) and participants pane.

* fix(participants): Change from array to Map

* fix(unload): optimise

* feat: Introduces new states for e2ee feature.

Stores everyoneSupportsE2EE and everyoneEnabledE2EE to minimize looping through participants list.

squash: Uses participants map and go over the elements only once.

* feat: Optimizes isEveryoneModerator to do less frequent checks in all participants.

* fix: Drops deep equal from participants pane and uses the map.

* fix(SharedVideo): isVideoPlaying

* fix(participants): Optimise isEveryoneModerator

* fix(e2e): Optimise everyoneEnabledE2EE

* fix: JS errors.

* ref(participants): remove getParticipants

* fix(participants): Prepare for PR.

* fix: Changes participants pane to be component.

The functional component was always rendered:
`prev props: {} !== {} :next props`.

* feat: Optimization to skip participants list on pane closed.

* fix: The participants list shows and the local participant.

* fix: Fix wrong action name for av-moderation.

* fix: Minimizes the number of render calls of av moderation notification.

* fix: Fix iterating over remote participants.

* fix: Fixes lint error.

* fix: Reflects participant updates for av-moderation.

* fix(ParticipantPane): to work with IDs.

* fix(av-moderation): on PARTCIPANT_UPDATE

* fix(ParticipantPane): close delay.

* fix: address code review comments

* fix(API): mute-everyone

* fix: bugs

* fix(Thumbnail): on mobile.

* fix(ParticipantPane): Close context menu on click.

* fix: Handles few error when local participant is undefined.

* feat: Hides AV moderation if not supported.

* fix: Show mute all video.

* fix: Fixes updating participant for av moderation.

Co-authored-by: damencho <damencho@jitsi.org>

- long touch on thumbnail opens context menu
- hide context menu icon
- add button for connection info to context menu

* Make Jitsi WCAG 2.1 compliant

* Fixed password form keypress handling

* Added keypress handler to name form

* Removed unneccessary dom query

* Fixed mouse hove style

* Removed obsolete css rules

* accessibilty background feature

* Merge remote-tracking branch 'upstream/master' into nic/fix/merge-conflicts

* fix error

* add german translation

* Fixed merge issue

* Add id prop back to device selection

* Fixed lockfile

Co-authored-by: AHMAD KADRI <52747422+ahmadkadri@users.noreply.github.com>

* Unify chat open/close size changes and move them to redux.
* Fix responsive columns not accounting for chat.

* Enforce fixed column number at various width breakpoints.
* Bring back the filmstrip at small sizes but hide it.
* Change default maximum columns to 7.

Features flags added:  
-tile-view.enabled
-filmstrip.enabled
-notifications.enabled
-toolbox.enabled

* Implement opening toolbar and participant overflows as drawers when below certain width.
* Fix dial-in copy button displaying incorrectly.