Adding a dialogue box before exiting editor without saving

[Paradox304]

This is just a quality of life change, but if it's possible can we get a dialogue box saying "You have unsaved changes, are you sure you want to exit without saving them" and have an option to Save or Exit without saving. I can't imagine how many times map developers have exited out of their editor without saving and realize hours of editing has gone down the drain.

[Jdance-Media]

Bump.