Merge "Use already-running app instances when splitting" into tm-qpr-dev am: 538281db

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/20625907



Change-Id: If7edcfa37908409a48c6a4db9031fab0fe2414a7
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>