* Add a global control for toggling earpiece mode
This will be used by Element X to show an earpiece toggle button in the header.
* Add an earpiece overlay
* Fix header
The header needs to be passed forward as a string to some components and as a bool (hideHeader) to others.
Also use a enum instead of string options.
* fix top clipping with header
* hide app bar in pip
* revert android overlay app_bar
* Modernize AppBarContext
* Style header icon color as desired and switch earpice/speaker icon
* fix initial selection when using controlled media
* Add "Back to video" button
* fix tests
* remove dead code
* add snapshot test
* fix back to video button
* Request capability to learn the room name
We now need the room name in order to implement the mobile (widget-based) designs with the app bar.
* Test the CallViewModel output switcher directly
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Co-authored-by: Timo <toger5@hotmail.de>
