🚀 [Feature] Provide Star data from the backend

[ulfgebhardt]

🚀 Feature

Who: Users
What: According to our clients, every user is a star (a node)
Why: Every user should get the feeling to be part of a bigger cosmos

Provide the backend call for #1746
It is to be negotiated what format the data should have so its efficiently rendered.

The goal of this ticket is to provide an api call which produces 3 dots of which two are connected in the frontend canvas