Report enterAnimationComplete when transient launch is committed

Transient launches are not considered "visible-at-end" since their
whole point is being only visible during the transition. If,
however, the transition is "committed", we should still report
enterAnimationComplete, so add an additional check for it.

Bug: 243698723
Test: atest TransitionTests
Change-Id: Ib33d1f7ef55a1da25bfc0e93db6d14d7ffcccbfc