set current id by default i guess

js/app/components/settings/branding-admin.tsx

···
   Button,
   Input,
   Text,
+  useStreamplaceStore,
   useToast,
   View,
   zero,
···
   const agent = usePDSAgent();
   const fetchBranding = useFetchBranding();
   const toast = useToast();
+  const currentBroadcasterDID = useStreamplaceStore((s) => s.broadcasterDID);
 
   // state for form inputs
   const [siteTitle, setSiteTitle] = useState("");
···
   // load current branding on mount
   useEffect(() => {
     fetchBranding();
+    setBroadcasterDID(currentBroadcasterDID || "");
   }, []);
 
   const uploadText = async (key: string, value: string) => {