Show the Compose implementation of the footer actions when available

This CLs shows the Compose implementation of the QS footer actions when
Compose is enabled (it is not by default).

Bug: 242040009
Test: Build with SYSTEMUI_USE_COMPOSE=true and use the footer actions buttons.
Change-Id: I41a2a65fdf108849a8b2a7d381dab9d7d644f89a
5 files changed