When you enable and then disable av-moderation just the audio moderation is disabled and video moderation disabling is not signalled to moderated clients.

* 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>

* feat(prosody-modules): Moves a function for getting room to util.

* feat: Audio/Video moderation.

* squash: Fix docs.

* squash: Changes a field name in the message for adding jid to whitelist.

* squash: Moves to boolean from boolean string.

* squash: Only moderators get whitelist on join.

* squash: Check whether in room and moderator.

* squash: Send to participants only message about approval.

Skips sending the whole list.

* feat: Separates enable/disable by media type.

Adds actor to the messages to inform who enabled it.

* squash: Fixes reporting disable of the feature.

* squash: Fixes init of av_moderation_actors.

* squash: Fixes av_moderation_actor jid to be room jid.

* squash: Fixes comments.

* squash: Fixes warning about shadowing definition.

* squash: Updates ljm.

* fix: Fixes auto-granting from jicofo.

* squash: Further simplify...