[Screen share] Update strings for screen record dialog.

Bug: 352327853
Flag: NONE string changes
Test: Click screen record QS tile -> verify dialog has new strings for
both single app case and entire screen case
Test: atest ScreenRecordPermissionDialogDelegateTest

Change-Id: I0df0bd5f1561cd4b2b421e2452b47281d941df23
3 files changed