Merge "Use RectFSpringAnim for auto-enter-pip" into sc-dev am: e3bfeddd04 am: 1c56a26f82 am: 229a79d76e

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/14984847

Change-Id: I7c1d3951c4a1f17fb9004821b0aa2e383667a18e