style: apply prettier across fork files

check:prettier was not part of my gate routine, so formatting drift accumulated
across the session's touched files (and a few older ones). Run prettier --write
to bring the repo back to 'All matched files use Prettier code style!'.
Formatting only — no logic changes. tsc/tests/build all green.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

src/app/hooks/useAccountData.ts

@@ -6,9 +6,7 @@ import { getAccountData } from '../utils/room';
 
 export function useAccountData(eventType: string): MatrixEvent | undefined {
   const mx = useMatrixClient();
-  const [event, setEvent] = useState<MatrixEvent | undefined>(() =>
-    getAccountData(mx, eventType),
-  );
+  const [event, setEvent] = useState<MatrixEvent | undefined>(() => getAccountData(mx, eventType));
 
   useAccountDataCallback(
     mx,