Merge "Disabling overview actions when thumbnail is not loaded." into ub-launcher3-rvc-qpr-dev am: e1037c63dd

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/12160683

Change-Id: I22ea60d92d75d8caf964511773119fc38fdbb5ca