Fix typo

Author: bobvandevijver

templates/injector.html.twig

@@ -30,7 +30,7 @@ const observerArticle = new MutationObserver(function(mutations) {
                 if (node.nodeType === Node.ELEMENT_NODE && node.classList.contains('collection-item')) {
                     initArticles();
                 }
-            });
+            }
         }
     });
 });