[Device Supervision] Customize ConfirmLockPassword for supervision PIN verification.

This change updates the title and details text when the lock is being confirmed for a supervising profile PIN. The title is updated to "supervision_full_screen_pin_verification_title", and the details/subtitle text is set to be empty.

Bug: 419811681
Flag: android.multiuser.allow_supervising_profile
Test: n/a
Change-Id: I922fb93deb24336de06a32230f73ecc9ee395772