Merge "[Launcher] App grid support for reset (1/4)." into tm-qpr-dev am: 7729aa4c am: 48c55e0c

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/21467322



Change-Id: I4f8513ef0b2886c996eb7b0c757dc90a3c640dc7
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>