Fix behavior of the buttons when clicking quickly one after the other

[lukas-monet]

User story

1. As a user
2. I want that the buttons for video navigation have the right behavior in every situation
3. So that I can seamlessly navigate through the videos

Acceptance criteria

• when clicking the video navigation buttons quickly one after the other they should have the same behavior then when clicking the video navigation buttons with a greater time gap in between
• add information from person who reported the bug

Definition of done (DoD)

• Create feature branch
• Implement the functionality
• Opened pull request and assigned reviewer
• If necessary: required changes are implemented
• Delete feature branch
• If necessary: Component Test has been written
• Code review has been completed and code has been merged

DoD general criteria

• Feature has been fully implemented
• Feature has been merged into the mainline
• All acceptance criteria were met
• Product owner approved features
• All tests are passing
• Developers agreed to release