Make program close on Ctrl+C in terminal

[deragent]

As in the title. The window should close upon Ctrl+C when started from a terminal.

[deragent]

This might not be as simple as thought, due to how python handles signals:

https://stackoverflow.com/questions/4938723/what-is-the-correct-way-to-make-my-pyqt-application-quit-when-killed-from-the-co