minor #1341 use nullsafe operator in BlogController (MrYamous)

This PR was merged into the main branch.

Discussion
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use nullsafe operator in BlogController

Hi,

Considering symfony/demo require php 8.0.2 I guess it'safe to use nullsafe instead ternary to get tag's name if `Tag` exist

Commits
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491b896 use nullsafe operator

Author: javiereguiluz

src/Controller/BlogController.php

@@ -59,7 +59,7 @@ public function index(Request $request, int $page, string $_format, PostReposito
         // See https://symfony.com/doc/current/templates.html#template-naming
         return $this->render('blog/index.'.$_format.'.twig', [
             'paginator' => $latestPosts,
-            'tagName' => $tag ? $tag->getName() : null,
+            'tagName' => $tag?->getName(),
         ]);
     }