Bug: API endpoint naming
# Bugs
## Description
The API endpoint scheme for the AnnotationAPI is designed for local use only.
It has to be updated in a way the endpoints work on the servers, too.
## Severity
How much impact does this bug have on the product or further development?
* [ ] Minor
* [x] Major
* [ ] Critical
* [ ] Blocker
/cc [Mathias Göbel](https://gitlab.gwdg.de/mgoebel), [Frank Schneider](https://gitlab.gwdg.de/schneider210), [Michelle Weidling](https://gitlab.gwdg.de/mrodzis)
issue