Merge "Pause the AllSetActivity background animation more reliably." into tm-qpr-dev am: 2b3bd3039b am: 3535dd5906

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/19239008

Change-Id: I82a87521f56031ac1f4157611ecee43e2bd043f7
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>