import * as React from "react"; import { HelloComponent } from "./hello"; import { NameEditComponent } from "./nameEdit"; export const App = () => {  const [name, setName] = React.useState("defaultUserName");  const [editingName, setEditingName] = React.useState("defaultUserName");  const loadUsername = () => {  setTimeout(() => {  setName("name from async call");  setEditingName("name from async call");  }, 500);  };  React.useEffect(() => {  loadUsername();  }, []);  const setUsernameState = () => {  setName(editingName);  };  return (  <>  <HelloComponent userName={name} />  <NameEditComponent  initialUserName={name}  editingName={editingName}  onNameUpdated={setUsernameState}  onEditingNameUpdated={setEditingName}  />    ); };