Merge "Disabling overview actions when thumbnail is not loaded." into ub-launcher3-rvc-qpr-dev am: e1037c63dd am: d84cdd36ab

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

Change-Id: Ib90f7fa91ec6e74830466b662b45a0c7b0f6cd83