Initial restyle of MediaOutputDialog for TV.

Creates separate adapter and dialog for TV and extends the controller.
They are created from the factory that is injected in place of the mobile
one.
The dialog shows as a panel like the launcherx dashboard.

Bug: 292064212
Bug: 292068975
Test: manual, open dialog via
SystemOutputSwitcherDialogController.showDialog(context)

Change-Id: I9a33fee37e08ea20cb614cc50876fae6c7f28b90