Minor CSS underline fix in label management (#7952)
Before
<img width="255" height="159" alt="image" src="https://github.com/user-attachments/assets/9b80659c-c646-47de-8436-45aa38afd465" />
After
<img width="238" height="161" alt="image" src="https://github.com/user-attachments/assets/27dcb572-5935-405b-9cfc-33eb95d78bf0" />
(ignore CSS in branch name, it's just HTML changes - although this could've been solved with `display: inline-block` too)