Set title for index page in backend

src/Forum/Content/Index.php

@@ -15,6 +15,7 @@
 use Flarum\Http\UrlGenerator;
 use Flarum\Settings\SettingsRepositoryInterface;
 use Flarum\User\User;
+use Illuminate\Contracts\Translation\Translator;
 use Illuminate\Contracts\View\Factory;
 use Illuminate\Support\Arr;
 use Psr\Http\Message\ServerRequestInterface as Request;
@@ -46,13 +47,15 @@ class Index
      * @param Factory $view
      * @param SettingsRepositoryInterface $settings
      * @param UrlGenerator $url
+     * @param Translator $translator
      */
-    public function __construct(Client $api, Factory $view, SettingsRepositoryInterface $settings, UrlGenerator $url)
+    public function __construct(Client $api, Factory $view, SettingsRepositoryInterface $settings, UrlGenerator $url, Translator $translator)
     {
         $this->api = $api;
         $this->view = $view;
         $this->settings = $settings;
         $this->url = $url;
+        $this->translator = $translator;
     }
 
     public function __invoke(Document $document, Request $request)
@@ -74,6 +77,7 @@ public function __invoke(Document $document, Request $request)
         $apiDocument = $this->getApiDocument($request->getAttribute('actor'), $params);
         $defaultRoute = $this->settings->get('default_route');
 
+        $document->title = $this->translator->trans('core.forum.index.meta_title_text');
         $document->content = $this->view->make('flarum.forum::frontend.content.index', compact('apiDocument', 'page'));
         $document->payload['apiDocument'] = $apiDocument;
         $document->canonicalUrl = $defaultRoute === '/all' ? $this->url->to('forum')->base() : $request->getUri()->withQuery('');