Apply fixes from StyleCI

app/Notifications/NewContact.php

@@ -1,9 +1,27 @@
 <?php
 
+/*
+ * Copyright © 2020 Miguel Nogueira
+ *
+ *   This file is part of Raspberry Staff Manager.
+ *
+ *     Raspberry Staff Manager is free software: you can redistribute it and/or modify
+ *     it under the terms of the GNU General Public License as published by
+ *     the Free Software Foundation, either version 3 of the License, or
+ *     (at your option) any later version.
+ *
+ *     Raspberry Staff Manager is distributed in the hope that it will be useful,
+ *     but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *     GNU General Public License for more details.
+ *
+ *     You should have received a copy of the GNU General Public License
+ *     along with Raspberry Staff Manager.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 namespace App\Notifications;
 
 use Illuminate\Bus\Queueable;
-use Illuminate\Contracts\Queue\ShouldQueue;
 use Illuminate\Notifications\Messages\MailMessage;
 use Illuminate\Notifications\Notification;
 use Illuminate\Support\Collection;
@@ -44,23 +62,22 @@ class NewContact extends Notification
     public function toMail($notifiable)
     {
         if ($this->message->has([
-          'message',
-          'ip',
-          'email'
-        ]))
-        {
-          return (new MailMessage)
+            'message',
+            'ip',
+            'email',
+        ])) {
+            return (new MailMessage)
                       ->line('We\'ve received a new contact form submission in the StaffManagement app center.')
                       ->line('This is what they sent: ')
                       ->line('')
                       ->line($this->message->get('message'))
                       ->line('')
-                      ->line('This message was received from ' . $this->message->get('ip') . ' and submitted by ' . $this->message->get('email') . '.')
+                      ->line('This message was received from '.$this->message->get('ip').' and submitted by '.$this->message->get('email').'.')
                       ->action('Sign in', url(route('login')))
                       ->line('Thank you!');
         }
 
-        throw new \InvalidArgumentException("Invalid arguments supplied to NewContact!");
+        throw new \InvalidArgumentException('Invalid arguments supplied to NewContact!');
     }
 
     /**