Merge "Updates Assistant gesture regions when no longer tracking multiple." into ub-launcher3-rvc-dev am: fce6be550b

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/11989960

Change-Id: Iac670fc5f6cfdb0bb38a571c96136858f1b14f1a