Merge "Fix bug where Taskbar was not auto-hiding after splitscreen launch from icon menu" into tm-qpr-dev am: 3c8def9f88 am: ce97be3d12 am: e71032e2cf am: 65b5990c78

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/22077752

Change-Id: I7ba92b211b8d202fcf97fba8c1c2ac08cb8ac16b
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>