Update string description to be more clear.

   <string name="app_permissions">App permissions</string>

   <!-- Summary of permissions currently granted to apps [CHAR LIMIT=45] -->

   <string name="app_permissions_summary"><xliff:g id="count" example="10">%d</xliff:g> of <xliff:g id="count" example="10">%d</xliff:g> apps allowed additional access</string>

   <!-- Summary of permissions currently granted to a single permission [CHAR

   <!-- Summary of number of apps currently granted a single permission [CHAR

        LIMIT=45] -->

   <string name="app_permissions_group_summary"><xliff:g id="count" example="10">%d</xliff:g> of <xliff:g id="count" example="10">%d</xliff:g> apps allowed</string>