Merge "Fix setApplicationNightMode did not persist night mode." into sc-dev am: 5b1b2b15 am: db9a73f7 am: 48bafc21

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/15270812

Change-Id: If41196f10aa4ac78efa0c4e6ee5012098efe321c