[BUG] cellpose3 GUI layout

Here is a small bug just let you know. 
Cellpose3 GUI layout information shows the cellpose2 GUI

<img width="1056" height="736" alt="Image" src="https://github.com/user-attachments/assets/533af6c9-ba47-4282-8b49-5bd11abfde62" />