Merge "Always check for availability of widgets before changing visibility of...

Merge "Always check for availability of widgets before changing visibility of recycler view and no widgets view." into sc-dev am: e5bd97c5

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/14295627

Change-Id: Icba7db117b881cfe07fa40d5f8b2b83b1824a63a