add missing parenthesis

assets/embed/public/js/application.js

@@ -826,13 +826,13 @@ document.addEventListener("editor", (event) => {
     window.addEventListener('keydown', (event) => {
         if (event.ctrlKey || event.metaKey) {
             switch (String.fromCharCode(event.which).toLowerCase()) {
-            case 's':
+                case 's':
-                event.preventDefault();
+                    event.preventDefault();
-                saveContent();
+                    saveContent();
-                break;
+                    break;
             }
         }
-    }
+    });
 
     return false;
 });