Reduced jank when placing a call from search UI.

I accidently made the search/dialtacts UI TOO performant and everything was
happening too quickly. Postponed closing the dialpad and exiting search until
onPause, but immediately close the keyboard so it isn't visible over the in
call ui.

Bug: 69313203,68857994
Test: see video
PiperOrigin-RevId: 176531801
Change-Id: I52729c451d46ad00ac87c47f189134694554d33a