Hook up luma sampling state change from CommandQueue

Currently when swiping up from some apps (maps), the stashed task bar color changes. Instead, sampling should be disabled during the transition (with a signal from the frameworks).

Bug: 230395757
Test: Swipe up from maps. Make sure the bar color doesn't change during transition
 to overview
Change-Id: Ifc30f4067a0e4d134b422d152f5b5caee0a77a33