The "Undo Reject Participant" and "Reject Participant" buttons have no gap between them

**Describe the bug**
The "Undo Reject" and "Reject Participant" buttons have no gap between them.

**Screenshots**
<img width="1717" height="959" alt="Image" src="https://github.com/user-attachments/assets/547dc7b4-0721-4cf3-8fcb-0ca815a4a36c" />

