Merge docusaurus and typedoc via plugin

**Is your feature request related to a problem? Please describe.**
Typedoc, generated from the packages typescript typings, is currently totally separated from the normal Docusaurus doc
**Describe the solution you'd like**
Explore this plugin: https://www.npmjs.com/package/docusaurus-plugin-typedoc

Is it better than having a separate typedoc? Does it work correctly? How the result look like?
