[Bug] Silent crash if notification position is on a monitor with different DPI settings

[EpochalEngineer]

Checklist

• [X] I have used the search function to see if someone else has already submitted the same bug report.
• [X] I will describe the problem with as much detail as possible.

App version

3.8.5

Windows version

11 Home 26100.2605

Steps to reproduce

1. Drag the packet notification to a window with different DPI settings than the main desktop and close the notification
2. Get a new packet notification
3. simplewall will crash quietly

If relevant,

Expected behavior

Not to crash. Or could display an error or move the notification back to the default position

Actual behavior

simplewall crashes silently

Logs

Can provide logs if instructions are given, as there is no crash dump popup