Merge "ShareTargets animations and styling." into sc-dev am: 1408c6459c

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/13555898

MUST ONLY BE SUBMITTED BY AUTOMERGER

Change-Id: I3845b47ad61b0d7035886b548aee47ea0e38235b