manager: order link column by last_name first (#50535)

src/authentic2/manager/tables.py

@@ -75,7 +75,7 @@ class UserTable(tables.Table):
         permission='custom_user.view_user',
         verbose_name=_('User'),
         accessor='get_full_name',
-        order_by=('first_name', 'last_name', 'email', 'username'),
+        order_by=('last_name', 'first_name', 'email', 'username'),
         kwargs={'pk': A('pk')})
     username = tables.Column()
     email = VerifiableEmailColumn()