Merge "Improved UX when no debuggable apps are available." into rvc-dev am: 6217af3fe1 am: 87c77496a5

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Settings/+/11675592

Change-Id: If0d6aa52c9029aab39d2aeda623e05f66632e555