Merge "Update buttons in pin widget picker." into sc-dev am: 8bd4ef6122 am: 3683bf6c72 am: f3fa2af9b2

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/14678281

Change-Id: I85b73b0dbc146c8fdbdba9a9ecd204f205655c42