Restructure the changelog

[goloroden]

What is this task about?

Right now, the changelog contains a list of changes made in a specific version. This list is ordered by criteria such as added, updated, and removed, but this leads to a quite technical result. It would be nice to do this in a more feature-driven way. Apart from that, it would be great if we could link to individual changes in the changelog.

What needs to be done to complete this task?

• [ ] Come up with a concept of how to structure the changelog in the future
• [ ] Change the changelog of latest to the new concept
• [ ] Use headlines instead of bullet points for the individual changes
• [ ] Adjust the release script (since it generates a new changelog for the next latest)

[yeldiRium]

We've discussed and (preliminarily) decided on https://keepachangelog.com/en/1.0.0/ with custom types of changes. There is no definitive plan yet, but ideas on how to use remark for this and to add some functionality regarding this to the roboter.