Update to New Docusaurus

[NikoAri]

This Repo looks like it's using older Docusaurus library. This should be updated to latest Docusaurus.

[NikoAri]

This Repo looks like it's using older Docusaurus library. This should be updated to latest Docusaurus.

[NikoAri]

Well, updates look like they are npm based, but this project was originally yarn based. Can you fix that, especially with lock files.