Restore quit confirmation in Godot 4

[elvisish]

Describe the project you are working on

FPS.

Describe the problem or limitation you are having in your project

When debugging, I instinctively press alt+f4 to close the game window (rather than writing a custom quit using Escape key for instance) and sometimes I accidently press it twice which closes the editor and loses all of my undo/redo history (which I'm using to test things out).

Describe the feature / enhancement and how it helps to overcome the problem or limitation

Restore the confirmation quit dialog, which was removed here: godotengine/godot#32321

Describe how your proposal will work, with code, pseudo-code, mock-ups, and/or diagrams

Put it back as a toggleable option so it displays whether there are files that need saving or not (as closing the editor loses all undo/redo history).

If this enhancement will not be used often, can it be worked around with a few lines of script?

All the needs restoring is the removed dialog from this change: godotengine/godot#32321

Is there a reason why this should be core and not an add-on in the asset library?

All the needs restoring is the removed dialog from this change: godotengine/godot#32321

[AThousandShips]

Sounds like a duplicate of:

• Confirm keyboard quit #6915

[AThousandShips]

Closing as a duplicate of:

• Confirm keyboard quit #6915

Since the proposal form wasn't even properly filled in, please make an effort to actually fill in the form instead of copying the same text three times

[elvisish]

I once again lost all of my undo history thanks to accidently alt+f4-ing the editor, there was no reason to remove this as it worked perfectly in 3.x and avoided this kind of thing happening.

Since the proposal form wasn't even properly filled in, please make an effort to actually fill in the form instead of copying the same text three times

There wasn't exactly a lot a detail needed for this particular request.