Ajax active clients - enforce client access restrictions (e.g. when changing ticket client)

ajax.php

@@ -294,6 +294,7 @@ if (isset($_GET['get_active_clients'])) {
         $mysqli,
         "SELECT client_id, client_name FROM clients
         WHERE client_archived_at IS NULL
+        $access_permission_query
         ORDER BY client_accessed_at DESC"
     );