Delete unused branches

[luccalb]

User Story

1. As an AMOS software developer
2. I want to maintain a clean GitHub repository with a clear branch structure
3. so that I easily identify the active feature branches and release branches, whilst deleting stale/merged branches

Additional context

• It's safe to delete inactive branches after they were merged into develop/main
• The code will not be lost and is still considered for grading, as the history/commits are visible in the develop branch
• Statement by Thomas:

Hi,
there are basically two scenarios you should consider:

1. You have merged all changes of your feature branch to your main branch. In this case there is no relevant work left in the feature branch because it can be found in the main branch. You can delete these branches.
2. There are some unmerged changes on your feature branch. In this case there is relevant work which would be lost by deleting the branch. In this case don't delete the branch.
   Cheers,
   Thomas

Acceptance Criteria

• All unused/stale/merged branches are deleted
• The branch structure is in a clean state
• Branches that should NOT be deleted
  • develop
  • merge/core-develop-cone
  • merge/to-core
  • other active branches

Definition of Done

• Test cases have been created and are running successfully
• Documentation for the new component was added
• Github Actions are running without errors