Apply fixes from StyleCI

src/ForumAttributes.php

@@ -1,5 +1,14 @@
 <?php
 
+/*
+ * This file is part of fof/best-answer.
+ *
+ * Copyright (c) FriendsOfFlarum.
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
 namespace FoF\BestAnswer;
 
 use Flarum\Api\Serializer\ForumSerializer;
@@ -16,7 +25,7 @@ public function __construct(SettingsRepositoryInterface $settings)
  {
  $this->settings = $settings;
  }
- 
+
  public function __invoke(ForumSerializer $serializer, $model, array $attributes): array
  {
  if ($value = $this->getBooleanSetting('fof-best-answer.search.solution_search')) {
@@ -28,7 +37,7 @@ public function __invoke(ForumSerializer $serializer, $model, array $attributes)
  $attributes['useAlternativeBestAnswerUi'] = $this->getBooleanSetting('fof-best-answer.use_alternative_ui');
  $attributes['showBestAnswerFilterUi'] = $this->getBooleanSetting('fof-best-answer.show_filter_dropdown');
  $attributes['bestAnswerDiscussionSidebarJumpButton'] = $this->getBooleanSetting('fof-best-answer.discussion_sidebar_jump_button');
- 
+
  return $attributes;
  }