Move all sheets to render in a new container which uses FullWindowOverlay, which allows rendering above presentation controllers on iOS.

I somehow missed all other usages of the ColorSchemeRegistry.

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

- Fixed background color for all participants context menus
- Removed connection status from ReactVideoMenu and added it for local participants
- Removed AVModeration comments on mobile
- Show on stage option visible only when participants pane is closed

* Add: remoteVideoMenu.disableGrantModerator option

* Add disableGrantModerator to native side

* Update RemoteVideoMenu.js

* Update RemoteVideoMenuTriggerButton.js

Co-authored-by: ouya99 <alexander@andlabs.eu>

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

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