Frontend: Fix lint errors

Author: wr1159

frontend/app/app/collab/[room_id]/page.tsx

@@ -1,6 +1,6 @@
 import dynamic from "next/dynamic";
 
-export const MonacoEditor = dynamic(
+const MonacoEditor = dynamic(
   () => import("@/components/collab/monaco-editor"),
   {
     ssr: false,

frontend/components/collab/monaco-editor.tsx

@@ -12,7 +12,6 @@ export default function MonacoEdit({ roomId }: { roomId: string }) {
   const [editor, setEditor] =
     useState<MonacoEditor.IStandaloneCodeEditor | null>(null);
   const [provider, setProvider] = useState<WebsocketProvider | null>(null);
-  const [binding, setBinding] = useState<MonacoBinding | null>(null);
 
   // this effect manages the lifetime of the Yjs document and the provider
   useEffect(() => {
@@ -41,7 +40,6 @@ export default function MonacoEdit({ roomId }: { roomId: string }) {
       new Set([editor]),
       provider?.awareness
     );
-    setBinding(monacoBinding);
     return () => {
       monacoBinding.destroy();
     };