#283 Application hangs after opening Engine Configuration window MACOS

[Patalex]

Description: On macOS, the Engine Configuration window appears successfully, but the application becomes unresponsive immediately afterward and must be force quit.

Steps to Reproduce:

Launch Scid on macOS (27)
Open the Engine Configuration dialog
Observe that a window appears, but the app stops responding
Force quit is required to close the application

Expected Behavior: The window should remain interactive and allow engine configuration.

Actual Behavior: The app freezes shortly after the window appears.