next.js

fb36def4 - Example: Updated the example of rewrites to utilize the App Router (#69495)

Example: Updated the example of rewrites to utilize the App Router (#69495) This PR updates the rewrites example to use the App Router. Here are the changes that have been made: - Renamed the "pages" folder to the "app" folder. - Updated the routing for /, /news/[...slug] & /about files to align with the App Router. - Added the layout.tsx file as part of the App Router. - Updated the package.json file. - Updated the Readme.md file CC: @samcx --------- Co-authored-by: samcx <sam@vercel.com>