Fix new snip route

src/Controller/SnipController.php

@@ -124,14 +124,14 @@ class SnipController extends AbstractController
     }
 
     #[Route('/new', name: '_new')]
-    public function new(Request $request): Response
+    public function new(Request $request, SnipContentService $contentService): Response
     {
         $snip = new Snip();
         $snip->setCreatedAtNow()
              ->setCreatedBy($this->getUser())
         ;
 
-        return $this->edit($snip, $request);
+        return $this->edit($snip, $request, $contentService);
     }
 
     #[Route('/delete/{snip}', name: '_delete')]