Apply fixes from StyleCI

extend.php

@@ -30,6 +30,7 @@
             if ($serializer->getActor()->isAdmin()) {
                 $attributes['fof-pretty-mail.extra-template-attrs'] = array_keys(resolve('fof-pretty-mail.additional-data'));
             }
+
             return $attributes;
         }),
 ];

src/Extend/PrettyMail.php

@@ -1,5 +1,15 @@
 <?php
 
+/*
+ * This file is part of fof/pretty-mail.
+ *
+ * Copyright (c) FriendsOfFlarum.
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ *
+ */
+
 namespace FoF\PrettyMail\Extend;
 
 use Flarum\Extend\ExtenderInterface;
@@ -9,29 +19,29 @@
 class PrettyMail implements ExtenderInterface
 {
     protected $data = [];
-    
+
     /**
-     * @param string $key
+     * @param string          $key
      * @param callable|string $callback
-     * 
+     *
      * The callback can be a closure or an invokable class, and should accept:
      * - \Flarum\Notification\Blueprint\BlueprintInterface $blueprint
      *
      * The callable should return a string value to assign to the key when the template is rendered.
      * - string $value
-     * 
+     *
      * @return self
      */
     public function addTemplateData(string $key, $callback): self
     {
         $this->data[$key] = $callback;
-        
+
         return $this;
     }
-    
+
     public function extend(Container $container, Extension $extension = null)
     {
-        $container->extend('fof-pretty-mail.additional-data', function($items) {
+        $container->extend('fof-pretty-mail.additional-data', function ($items) {
             return array_merge($items, $this->data);
         });
     }