Merge "Change folderFillColor to colorBackgroundFloating." into sc-dev am: dfde41cf1e am: 9b8ae1b374 am: aac6f48b63

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

Change-Id: I099b6b1c565feb966f029fa44ef93f9b850bc53e