Merge "Add the staggered ring appear animation!" into tm-dev am: 538581639e

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/17356398

Change-Id: I366273dab842698e890a2728340d9dd20c05202b
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>