The client now listens for changes to lastN, selectedEndpoints and maxReceiverVideoQuality in redux to trigger sending  bridge message in the new format. This fixes an issue where the stage view <-> tile view changes prompt two receiver constraints messages to be sent, first with the maxHeight update and then with the selected endpoints update.

It looks particularly odd, specially when any virtual background is activated.

- add some missing meet features

- small refactor to trigger `notifyVideoMutedStatusChanged` correctly when participant is presenting

* remove redundant event / only show on supported env

* remove unused imports

If the new ones are specified, use them.

* audio only screen share implementation

* clean up

* handle stop screen share from chrome window

* update icon

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

* add option for disabling join/leave sounds

* document disableJoinLeaveSounds and add it to whitelist

Found via `codespell -q 3 -S ./lang`

* ensure keyboard stays open when sending messages on mobile web.