Update bubble + flyout animations.

- Brings the new bubble animation up to spec, where it scales into place and pushes the other bubbles to the side.
- Updates the flyout entrance animation to expand from the dot, rather than simply sliding in.
- When tapping the flyout, collapse first before expanding.

Test: atest SystemUITests
Fixes: 134512898
Change-Id: Ibc65221bf258010ef40943d88a88698964dee7cd