Upgrade react to v18

https://react.dev/blog/2022/03/08/react-18-upgrade-guide#updates-to-client-rendering-apis

Change-Id: Ibac40eb3d900f54955dfbc8f5e2833a0c47941a6

src/index.js

@@ -1,5 +1,9 @@
 import React from "react";
-import ReactDOM from "react-dom";
+import { createRoot } from "react-dom/client";
 import App from "./App";
 
-ReactDOM.render(<App />, document.getElementById("root"));
+createRoot(document.getElementById("root")).render(
+  <React.StrictMode>
+    <App />
+  </React.StrictMode>
+);