Merge "Include widget padding & boarder spacing in widget preview size estimation" into sc-dev am: 5063805a4e am: d4e862e826

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/14830785

Change-Id: I9a7ed60d3d01257ef42752a9f2854630df40469d