Remove unused icons
Remove fill none from icons
Rename some icons

feat(toolbox/conference/audio-mode/chat/native): UI fixes and updates

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.

Fixes: https://github.com/jitsi/jitsi-meet/issues/9996

On iOS 15 Bluetooth devices are reported twice for some reason, one with the
normal type "Bluetooth" but another type without a know (to me) type, and the
uid ends in "-reference".

While we send those unkwno devices to JS, we were not filtering them properly.
This patch skips them altogether.

This commit refactors device selection (more heavily on iOS) to make it
consistent across platforms.

Due to its complexity I couldn't break out each step into separate commits,
apologies to the reviewer.

Changes made to device handling:

- speaker is always the default, regardless of the mode
- "Phone" shows as a selectable option, even in video call mode
- "Phone" is not displayed when wired headphones are present
- Shared device picker between iOS and Android
- Runtime device updates while the picker is open

Per react migration docs, initially fetching external data is
recommended to be done in componentDidMount.

Make it more generic by accepting any content except of just rows with text and
icons.

In addition, rework its structure so the animation is smoother, by putting the
background overlay outside of the Modal. This way, the animation doesn't affect
the background, which won't slide down.

Rearrange the ToolbarButtons in the secondary Toolbar in order to mostly
group the media-related ones such as the AudioRouteButton, the
switchCamera button, and the audio-only mode button.

Due to the difference in nature, the iOS and Android implementations are
completely different:

iOS: MPVolumeView is used, which allows us to place a button which will launch a
native route picker provided by iOS itself. This view is different depending on
the iOS version, with the iOS 11 version being more complete.

Android: A completely custom component is used, which displays a bottom sheet
with the device categories, not devices individually. This is akin to the sheet
in the builtin dialer.