Merge "Force initialize task stack callback for gesture modes on init" into sc-dev am: e1a5d6bb1b am: 90e18156b5 am: 479dd8bf2a

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

Change-Id: I4c6c0c0483f6c3c65c77fbe4c068489cc08f4f46