Introduce navigation for all in-conference screens.

Video quality label now becomes "performance settings".
All CSS for labels is moved to JS.
Overflow menu button is also changed to "performance settings".

This is a stop-gap approach to remove the AtlasKit notifications stack.

Instead of using a AK FlagGroup to render our notifications (Flag components)
in, create our own container and use a fake FlagGroupContext provider, which is
what FlagGroup uses to control what flags can be dismissed.

Since we now render all notifications, the web part has been refactored to make
sure all notifications get a timer.

Added animations

Renamed DrawerPortal to JitsiPortal

Redesigned notifications
Changed notification text and icons color and added collared ribbon

A shared video participant counts, so the lonely meeting invite options can
disappear.

Co-authored-by: Vlad Piersec <vlad.piersec@8x8.com>

* feat(prejoin) move invite to toolbar section

* feat(premeeting) redesign prejoin and lobby screens

* code review changes

* fix prejoin flicker and avatar id

* fix password error message and native lobby dialog close position

* feat: Initial UI part for A/V moderation.

Based on https://github.com/jitsi/jitsi-meet/pull/7779

Co-authored-by: Gabriel Imre <gabriel.lucaci@8x8.com>

* feat: Hides context menu in p2p or only moderators in the meeting.

* feat: Show notifications on enable/disable.

* feat(moderation): Add buttons to participant list & notifications

* fix(moderation): Fix raised hand participant leaving

* feat(moderation): Add support for video moderation

* feat(moderation): Add mute all video to context menu

* feat(moderation): Redo participants list 'More menu'

* fix: Fixes clearing av_moderation table.

* fix: Start moderation context menu

* fix(moderation): Show notification if unapproved participant tries to start CS

Co-authored-by: Gabriel Imre <gabriel.lucaci@8x8.com>
Co-authored-by: Vlad Piersec <vlad.piersec@8x8.com>

* 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>