Merge "[Overview Sharing] Turn on the feature flag for overview sharing." into sc-dev am: 5354abb0e7 am: 77da540f21

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/14342901

Change-Id: Iad908f1d6155abfb2f56ef8fe6fe3de8e7f86da1