Add examples for react applications

[nopresnik]

Describe the feature you'd like to request

All of the current demos almost exclusively use NextJS. It would be a great to see at least one demo built using React.

Describe the solution you'd like

A demo that can be found in the demos folder containing a monorepo of two React applications utilising common components.

Describe alternatives you've considered

n/a

[nopresnik]

Love this project by the way. Great job @jaredpalmer and @vercel!

[jaredpalmer]

Thanks!

Next.js uses React. The kitchen-sink example also includes a Vite x React app and a Remix x React app