Add resolution animations to BannerMessagePreference.

Additional changes:
* API to enable/disable positive and negative buttons (used after
  resolution is triggered)
* Hides the icon when none is set and expressive design is enabled
* Fixes a visual bug where the button spacer was still visible when one
  of the buttons was hidden

Bug: 382433901
Test: manual and treehugger
Flag: com.android.settingslib.widget.theme.flags.is_expressive_design_enabled
Change-Id: Ie96f5164ca2fe848753619b443a6949661f19423