docs: update static-tweet to react-tweet (#73253)
## Description
Now that next-tweet has been renamed
[react-tweet](https://github.com/vercel/react-tweet), [Static Tweet
(Demo)](https://static-tweet.vercel.app/) navigates
https://react-tweet.vercel.app.
So updated the link.
### Adding or Updating Examples
- [x] The "examples guidelines" are followed from our contributing doc
https://github.com/vercel/next.js/blob/canary/contributing/examples/adding-examples.md
- [x] Make sure the linting passes by running `pnpm build && pnpm lint`.
See
https://github.com/vercel/next.js/blob/canary/contributing/repository/linting.md
Co-authored-by: Delba de Oliveira <32464864+delbaoliveira@users.noreply.github.com>
