Custom Domain - Reload button should not appear before having configured the domain

## Bug Description

Weird UX
Reload button should either be hidden or be grayed (so the user cannot click on it)
Not creating a bug but just a weird experience


**Example:** 

<img width="863" height="500" alt="Image" src="https://github.com/user-attachments/assets/726756d4-050a-42c1-a4b1-2a273a94b73b" />
cc @AMoreaux per our discussion
Not urgent!