next.js

6a273df2 - chore(examples): updated the example of with-react-jss to utlize the App router (#74440)

chore(examples): updated the example of with-react-jss to utlize the App router (#74440) This PR updates the with-react-jss example to use the App Router. Here are the changes that have been made: - Renamed the `pages` folder to the `app` folder. - Converted the `index.tsx `to `page.tsx` file as part of the App Router. - Created `layout.tsx` in app directory, merging functionality from both `_app.tsx` and `_document.tsx`: - Wraps content with `StyledComponentsRegistry` - Created `app/registry.tsx` for JSS setup: - Moved JSS Provider and SheetsRegistry from _document.tsx - Moved style cleanup logic from _app.tsx - Handles server-side style generation - Updated the package.json file. The following actions were performed as part of this PR: - Ran `pnpm prettier-check` with no issues found. - Executed the `pnpm check-examples` script. CC: @samcx --------- Co-authored-by: samcx <sam@vercel.com>