Screen position & size of the "add node" popup dialog is not saved

[mieldepoche]

Godot version

4.0.3

System information

ubuntu 23.04

Issue description

• The position (and the size) of the add node (Ctrl + A) popup is reset on each node addition.
• This is unlike e.g. the "instantiate child scene" popup (Ctrl + Shift + A).
• This is bad because on my setup, the popup keeps showing up on my secondary monitor while the godot editor is on my main monitor.

Steps to reproduce

• have two monitors
• Ctrl + A
• Ctrl + Shift + A
  (notice how moving and resizing the "Instantiate Child Scene" window allows you to customize where it will next show up)

Minimal reproduction project

an empty project.godot file

[AThousandShips]

Cannot replicate on 4.x, it is saved correctly, with multiple monitors, but on Windows, so might be platform specific

Edit: This was a bug, and has been fixed in 4.1

[AThousandShips]

• Was fixed in 4.1 in: Don't use saved editor dialog size in single-window-mode. #75141

But the fix there was not backported to 4.0.x, will open a dedicated fix for 4.0.x

[akien-mga]

Fixed by #78403.