Move the "close" button further up and right

[Matthieu-LAURENT39]

Ever since the switch to GTK4, Pinta uses client-side decorations instead of server-side ones.
Since then, hugging the mouse to the top right corner of the window doesn't allow to click the exit button. Instead, you need to move the mouse left and down first.

It would be nice if the buttons were moved to allow quick access just by hugging the edge of the screen.

[cameronwhite]

Do you have a screengrab of what this looks like? I assume this is probably for Linux / Windows where the toolbar is now merged with the window's header bar