Ajoute la gateway des commentaires et corrige les vues

src/Silex/Controller/UserController.php

@@ -19,6 +19,13 @@ class UserController
     {
         $newsId = intval($params['id']);
         $news = $di->getNewsGateway()->getById($newsId);
-        return new HttpResponse(200, 'home', ['news' => $news]);
+        return new HttpResponse(200, 'newsView', ['news' => $news]);
+    }
+
+    public function viewPostComments(DI $di, array $params): HttpResponse
+    {
+        $newsId = intval($params['id']);
+        $comments = $di->getCommentGateway()->getByNewsId($newsId);
+        return new HttpResponse(200, 'comment', ['comments' => $comments]);
     }
 }