possibility to use complete string-identifier paths in standard_error and standard_success

Signed-off-by: Michael Kaufmann <d00p@froxlor.org>

admin_updates.php

@@ -135,6 +135,6 @@ if ($page == 'overview') {
 			'alert_msg' => $ui_text . $message
 		]);
 	} else {
-		Response::standardSuccess('noupdatesavail');
+		Response::standardSuccess('update.noupdatesavail');
 	}
 }