Merge "Fix app widget preview layout drag-n-drop & rendering" into sc-dev am: 681aa90325 am: a14e745dcb

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/14199561

Change-Id: I12b334d3f7ecf8b1b7849aaf8ee2b5df23466e1f