PicView not saving the "hide interface" toggle state (Alt+Z)

**PicView not saving the "hide interface" toggle state (Alt+Z)**

- Every time i open the app i need to **press two times Alt+Z** to view the interface.
- UserSettings.json is **not** read-only

![Image](https://github.com/user-attachments/assets/c549cd06-4853-449e-89b6-5de85b698aff)

---
_PicView 4.2.0
Windows 10_