Merge "Base split action on focusedTaskView instead of runningTaskView" into sc-v2-dev am: 33df165ca0 am: 35dc8f7c7f

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/15806448

Change-Id: Ic8212df3dfcd3a28862ae5885b241c3ceb830760