This PR implements Internationalized Routing using formatjs / react-intl.
## Changelog
- Updated formatjs to latest version
- Remove deprecated babel-react-intl-plugin in favor of babel-formatjs-plugin
- Remove server in favour of Internationalized Routing
- Added linter with formatjs rules
- Refactored JSX
- Added missing types
- Auto run formtjs script via before hooks
- Adjusted readme docs
- Added message descriptions
- Removed default configs
fixes#27870
## Bug
- [x] Related issues linked using `fixes #number`
- [ ] Integration tests added
- [ ] Errors have helpful link attached, see `contributing.md`
## Feature
- [ ] Implements an existing feature request or RFC. Make sure the feature request has been accepted for implementation before opening a PR.
- [ ] Related issues linked using `fixes #number`
- [ ] Integration tests added
- [ ] Documentation added
- [ ] Telemetry added. In case of a feature if it's used or not.
- [ ] Errors have helpful link attached, see `contributing.md`
## Documentation / Examples
- [x] Make sure the linting passes
Changes:
- Migrate to TypeScript. `react-intl` natively supports TypeScript now.
- Upgrade corresponding `formatjs` packages.
- Dynamically polyfill Intl API per locale since those polyfills are huge.
- Migrate to recommended workflow per https://formatjs.io/docs/getting-started/application-workflow
Henrik Wenz