Merge "Force initialize task stack callback for gesture modes on init" into sc-dev am: e1a5d6bb1b am: af44c7f976 am: 54fec8ece2

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/14754620

Change-Id: Iada56f781223539e56721459fc49a35a336cc2bc