Rest API Documentation

[FelixMalfait]

Edit:

• After some research, we will give this package a try. It has the Swaggers functionalities, but more beautiful.
• we will create the playground in the twenty-docs package, like we do for graphql
• we need to add a div to let the user fill its token to request the user workspace open api schema

We will soon have an endpoint the generate the OpenAPI schema (#2900)
But we need a more user-friendly way to generate a documentation from this

[charlesBochet]

This has been completed, closing this issue :)