chore: Migrate with-prefetching example to typescript (#40671)

## Documentation / Examples

- [x] Make sure the linting passes by running `pnpm lint`
- [x] The "examples guidelines" are followed from [our contributing
doc](https://github.com/vercel/next.js/blob/canary/contributing/examples/adding-examples.md)

Author: HaNdTriX

examples/with-prefetching/components/Nav.js examples/with-prefetching/components/Nav.tsx

@@ -7,7 +7,12 @@
   },
   "dependencies": {
     "next": "latest",
-    "react": "^17.0.2",
-    "react-dom": "^17.0.2"
+    "react": "^18.2.0",
+    "react-dom": "^18.2.0"
+  },
+  "devDependencies": {
+    "@types/node": "18.7.18",
+    "@types/react": "18.0.20",
+    "typescript": "4.8.3"
   }
 }

examples/with-prefetching/package.json

@@ -1,6 +1,7 @@
+import type { AppProps } from 'next/app'
 import Nav from '../components/Nav'
 
-export default function App({ Component, pageProps }) {
+export default function App({ Component, pageProps }: AppProps) {
   return (
     <>
       <Nav />

examples/with-prefetching/pages/_app.js examples/with-prefetching/pages/_app.tsx

@@ -0,0 +1,20 @@
+{
+  "compilerOptions": {
+    "target": "es5",
+    "lib": ["dom", "dom.iterable", "esnext"],
+    "allowJs": true,
+    "skipLibCheck": true,
+    "strict": true,
+    "forceConsistentCasingInFileNames": true,
+    "noEmit": true,
+    "incremental": true,
+    "esModuleInterop": true,
+    "module": "esnext",
+    "moduleResolution": "node",
+    "resolveJsonModule": true,
+    "isolatedModules": true,
+    "jsx": "preserve"
+  },
+  "include": ["next-env.d.ts", "**/*.ts", "**/*.tsx"],
+  "exclude": ["node_modules"]
+}