Normalized icon bitmap

Extend Launcher's BaseIconFactory to create bubble icon instead of manually creating AdaptiveIconDrawable.

Launcher normalizes circles bigger and squares smaller to account for the visual difference in size.
This results in padding between bubble view and the actual icon.

This change
- increases individual_bubble_size to account for this padding
- preserves the previous value in bubble_icon_bitmap_size
- includes various space / animation adjustments to preserve existing UX
- removes manual shadow drawing from bubble stack view, since it's already provided by Launcher

Bug: 129158983
Test: manual (create bubbles, size and spacing still look good in collapsed and expanded states)
Test: manual (create bubble, flyout open / close animations look good)
Test: atest SystemUITests
Change-Id: Icf63a2be57daff21ec64d2e9ac0eb0cd96af0399
11 files changed