Update AGENTS.md. Start fixing old weird errors

packages/ui/src/image-crop.tsx

@@ -378,7 +378,7 @@ export const Cropper = ({
   </ImageCrop>
 );
 
-export function Demo() {
+export const Demo = () => {
   const [file, setFile] = useState<File | null>(null);
   const [croppedImage, setCroppedImage] = useState<string | null>(null);
 
@@ -432,4 +432,4 @@ export function Demo() {
       </div>
     </div>
   );
-}
+};