Merge "Change folderFillColor to colorBackgroundFloating." into sc-dev am: dfde41cf1e am: 9b8ae1b374

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/14754919

Change-Id: If286f8737add44c733510ff6b82971e14ee58ed1