Separated laravel app to its own folder (#540)

api/app/Mail/OpenFormMail.php

@@ -0,0 +1,13 @@
+<?php
+
+namespace App\Mail;
+
+use Illuminate\Bus\Queueable;
+use Illuminate\Mail\Mailable;
+use Illuminate\Queue\SerializesModels;
+
+abstract class OpenFormMail extends Mailable
+{
+    use Queueable;
+    use SerializesModels;
+}