Project: Add more data to projects endpoint

[iLLiCiTiT]

Story

Most of the time when showing projects we need 'name', 'active', 'library' and if is pinned.

Problems

The best way how to get the projects is using REST but there is not a rest endpoint that would allow us to get all these information in single call.

Proposal

Add library and pinned to /api/projects endpoint. Not sure if pinned is the right way but adding data breaks the purpose of the endpoint (I think).

TODO

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