Don't reduce border radius of small buttons

It ends up looking quite cramped and out-of-style. ## Normal radius (proposed) <img width="816" height="452" alt="Image" src="https://github.com/user-attachments/assets/7b4dea56-2a88-4fb7-9c72-a5e25d436a0e" /> ## Small radius (current) <img width="816" height="452" alt="Image" src="https://github.com/user-attachments/assets/fcc142d6-aeaf-4ad8-a1f4-9c0ea25aca43" /> cc @susnux