Merge "Improve SettingsTransitionActivity for standalone usage." into sc-dev am: 0d6ceb67 am: c5ada5dd

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/14514063

Change-Id: I5091ce3b6ba275e43221d7f8e8762ba661e836c2