Approval dialog awkward location and difficult to read

1. Ideally it should be in the centre of the screen
2. It should not be raw json it's hard to see what you are approving
3. You should be able to hit enter to approve
4. Sometimes you get duplicated approval boxes

<img width="1510" height="954" alt="Image" src="https://github.com/user-attachments/assets/c3dd733a-1e03-479c-889f-010aad4ed3fd" />