SideFPS UX updates

1. Added side fps auth delay on device entry/biometric
prompt to wait for power press.
2. Added tap to dismiss dialog for side fps enrollment.

Test: atest SideFpsEventHandlerTest
Bug: 233953696
Change-Id: I1b8a63cc76cdb5d8e46206ba1bee8fc3246a8cdc
Merged-In: I1b8a63cc76cdb5d8e46206ba1bee8fc3246a8cdc