fix react template (#43)

Author: shogo0421

templates/react-ts/src/main.tsx

@@ -1,10 +1,9 @@
-import React from "react";
-import ReactDOM from "react-dom";
+import { StrictMode } from "react";
+import { createRoot } from "react-dom/client";
 import App from "./App";
 
-ReactDOM.render(
-  <React.StrictMode>
+createRoot(document.getElementById("root")!).render(
+  <StrictMode>
     <App />
-  </React.StrictMode>,
-  document.getElementById("root")
+  </StrictMode>
 );

templates/react/src/main.jsx

@@ -1,10 +1,9 @@
-import React from "react";
-import ReactDOM from "react-dom";
+import { StrictMode } from "react";
+import { createRoot } from "react-dom/client";
 import App from "./App";
 
-ReactDOM.render(
-  <React.StrictMode>
+createRoot(document.getElementById("root")).render(
+  <StrictMode>
     <App />
-  </React.StrictMode>,
-  document.getElementById("root")
+  </StrictMode>
 );