Missing information about categories for each vocabulary

[MicheleMallia]

Description of the enhancement

I would like to see information about the categories to which each vocabulary belongs.

Who are the users that would benefit from the enhancement and how?

Developers.

(Name specific organizations, roles and/or communities if possible, and/or point to relevant discussion elsewhere)

What new functionalities would the enhancement make possible?

It would be nice to have information about the categories to which each vocabulary belongs in the api rest /vocabularies or by creating a new api /categories that lists you all the category labels present with attached information about the vocabularies to which they belong.

Why is the enhancement important?

This enhancement allows me to have the category information that is not currently provided by the API you provided.

(Why should this be prioritized, instead of spending energy on something else? Who would do the work to make this happen?)