Merge "Disallow turning off developer options in page-agnostic mode" into main am: 0d124654

Original change: https://android-review.googlesource.com/c/platform/packages/apps/Settings/+/3073278



Change-Id: I87d83efc72a97bd942b522716d799efd6e5ed033
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>