Hi all 👋

This is the a draft addressing #503

The content is mostly adapted from my TypeScript + React guide I published two years ago, without the fluff and rephrased to suit proper documentation. It can be seen as an accompanying guide to the regular documentation, focusing on how to properly type so the compiler doesn't complain (which can be ... a lot!).

Things done:

• Documenting types for functional and class components
• Proper types for refs and events
• A section on hooks
• Proper typings for context

Things to do:

• A section with exposed types. I currently browse through index.d.ts to get a feeling for all types used and work on scenarios on how to use them in consumer's code.
• Re-check examples if there is a more up to date version. I also want to prevent people and SE crawlers to mistake this as a duplication of my original guide
• If ok, I want to add a section with further reading to Component type design patterns (e.g. https://fettblog.eu/typescript-react-component-patterns/)

Note: For proper syntax highlighting I had to add tsx and typescript to Prism.js. I used the link in the prism.js comment to get the original configuration, and added two more languages (the new link is again in prism.js)