Merge "Add initial split from GroupedTaskView animation" into tm-qpr-dev am: 4b0a5ed8fa

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/21613692

Change-Id: Ie67a493178748b7d44075e672a4a1ac3f66e7029
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>