Fix Tv PiP fullscreen shell transition (bounds)

Makes sure the menu surfaces scale together with the PiP content.

Bug: 271098548
Test: manual - make sure shell transitions are enabled, enter a PiP and
select fullscreen in the PiP menu -> menu buttons should fade out and
menu bounds should scale with the PiP content instead of staying at the
previous PiP location

Change-Id: I5f4ccef489d3fedbe0c8c453c0eb538a1f611856