Cecilia Vela Gurovic authored Mar 09, 2020 and Robert Lyon committed Mar 17, 2020

When turning on 'Lock blocks' for a group page, prevent group members
from removing the lock. Added a language string for site and institution
pages to make it clearer that the locking only affects pages that are
copied.

behatnotneeded

Change-Id: I26ebccb659f1c05333538dea24735ca11484b360