Add media carousel to quick settings scene

Also update other scenes to simplify common code

Bug: 296122467
Test: QuickSettingsSceneViewModelTest
Test: manual, with flags on/off
Flag: ACONFIG com.android.systemui.media_in_scene_container DEVELOPMENT
Change-Id: I860d73d7846da0a105ee1da53fbbc966f45a6fbe
7 files changed