fix: Fixed toggle buttons disappear, anchoring manifest title to top.

Bug fix

Summary

Refactored if condition in toggleIndex and anchored title to top.

Does the result of the MR comply to our "definition of done"?

• Unit tests passed
• Code reviewed
• Acceptance criteria met
• Functional tests passed
• Non-Functional requirements met
• Product Owner accepts the User Story

Related

Closes

Changelog

• I added a statement to the CHANGELOG.

Documentation

• I updated the README (if applicable)
• I provided my functions with appropriate documentation

/cc Mathias Göbel, Frank Schneider, Michelle Weidling