add react-router-dom

src/main.tsx

@@ -1,7 +1,19 @@
 import React from 'react'
 import ReactDOM from 'react-dom/client'
+import { createBrowserRouter, RouterProvider } from 'react-router-dom'
 import App from './App.tsx'
 import './index.css'
+import Root from './routes/root.tsx'
+import ErrorPage from './error-page.tsx'
+
+const router = createBrowserRouter([
+  {
+    path: "/",
+    element: < Root />,
+    errorElement: <ErrorPage />
+  },
+]);
+
 
 ReactDOM.createRoot(document.getElementById('root')!).render(
   <React.StrictMode>