Merge "Group weather widgets under the widget category" into sc-v2-dev am: 9114f280a2 am: bec302ab6c

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/15897183

Change-Id: I982d42b726a75e58fb2f9c2a608e7bfb4bd6874a