What kind of changes does this PR include?

•  Fixes or refactors
•  A new challenge
•  Additional documentation
•  Something else

Description

Relations

References

Checklist:

•  All the contributions made are solely the work of me and my co-authors
•  I tested the changes in this PR (if applicable)
•  I added unit tests to ensure my change works (when change in Java or on front-end code)
•  I added UI tests to ensure my UI changes work (when change in the overall UI, not needed if just adding a challenge)
•  The PR passes pre-commit hooks and automated tests