Merge "Adjust padding, margin of tabs in the WidgetsFullSheet" into sc-dev am: 1002981fd7 am: 4cd5fee186 am: 744123adea

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/14602830

Change-Id: If3eb5a246b4eea1a35b368301fa9f79bf03e13ee