send system notification on period confirmation

src/Bundle/ChillMainBundle/Notification/Templating/NotificationTwigExtensionRuntime.php

@@ -1,5 +1,14 @@
 <?php
 
+/**
+ * Chill is a software for social workers
+ *
+ * For the full copyright and license information, please view
+ * the LICENSE file that was distributed with this source code.
+ */
+
+declare(strict_types=1);
+
 namespace Chill\MainBundle\Notification\Templating;
 
 use Chill\MainBundle\Notification\NotificationPresence;
@@ -27,5 +36,4 @@ class NotificationTwigExtensionRuntime implements RuntimeExtensionInterface
             'notifications' => $notifications,
         ]);
     }
-
 }