Bubble change when display size change.

- Set primary button background oval and transparent.
- Provide outline for primary button since elevation doesn't work when background is transparent.
- Re-draw bubble on configuration changed to propagate changes.

Test: manual
PiperOrigin-RevId: 182949653
Change-Id: I71e70d6fa43fa5867f9cf37002930c5a8dc42b06
2 files changed