* feat(always-on-top): Updates buttons for visitors.

* squash: rename listener.

* squash: Adds visitor to the conference joined event.

* squash: fix comments and lint.

* squash: fix comments.

By default, that feature is disabled.

Fixes an issue where we were showing cc button for visitors that does not have features in the token.

* feat(visitors): Transcriptions for visitors.

* squash: Fixes filter iq.

* feat: Rewrites room name requests in rayo iq for visitors.

* squash: Handles visitors count that request transcriptions and the languages requested.

* fix(subtitles): Make sure we show captions button when no features but is transcribing.

getJwtDisabledButtons which is used as a selector will create a new array every time it is called. This will lead to unneccessary rerenders on every action where there is no difference in the result of getJwtDisabledButtons because the reference of the array will be different.

This fixes an issue where the user muted by focus is able to unmute themselves even when the sender limit has been reached.

* feat(conference) Impl audio/video mute disable when sender limit is reached.
Jicofo sends a presence when the audio/video sender limit is reached in the conference. The client can then proceed to disable the audio and video mute buttons when this occurs.

* squash: use a different action type and show notification.