Merge "[Toast] Add a feature flag for result launch animations." into tm-qpr-dev am: da31c5e3

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/20836637



Change-Id: I51d6978f5c7b19f600f2ffcfdf8b25bd366e17b5
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>