refactor(web): remove typescript

packages/web/src/components/Portal/index.jsx

@@ -0,0 +1,7 @@
+import ReactDOM from 'react-dom';
+const Portal = ({ children }) => {
+  return typeof document === 'object'
+    ? ReactDOM.createPortal(children, document.body)
+    : null;
+};
+export default Portal;