## Changelog
- Migrated `with-slate` example to typescript
- Updated dependencies to latest stable versions
- Added api route to demonstrate saving of `editorState`
## 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.md#adding-examples)
