### Godot version

4.0.3.stable

### System information

windows 11

### Issue description

fullscreen on the window node is not working and will show up as a windowed.

### Steps to reproduce

disable Embed Subwindows in Project Settings/Display/Window.
create a window node and set its mode to fullscreen.

### Minimal reproduction project

[fullscreen.zip](https://github.com/godotengine/godot/files/11821834/fullscreen.zip)
wd.no_focus = true;
	}
	if (p_flags & WINDOW_FLAG_MOUSE_PASSTHROUGH_BIT) {
		wd.mpass = true;
	}
	if (p_flags & WINDOW_FLAG_POPUP_BIT) {
		wd.is_popup = true;
	}
	if (p_flags & WINDOW_FLAG_TRANSPARENT_BIT) {
		DWM_BLURBEHIND bb;
		ZeroMemory(&bb, sizeof(bb));
		HRGN hRgn = CreateRectRgn(0, 0, -1, -1);
		bb.dwFlags = DWM_BB_ENABLE | DWM_BB_BLURREGION;
		bb.hRgnBlur = hRgn;
		bb.fEnable = TRUE;
		DwmEnableBlurBehindWindow(wd.hWnd, &bb);
		wd.layered_window = true;
	}
	
	HICON mainwindow_icon = (HICON)SendMessage(windows[MAIN_WINDOW_ID].hWnd, WM_GETICON, ICON_SMALL, 0);
	if (mainwindow_icon) {
		SendMessage(windows[window_id].hWnd, WM_SETICON, ICON_SMALL, (LPARAM)mainwindow_icon);
	}
	mainwindow_icon = (HICON)SendMessage(windows[MAIN_WINDOW_ID].hWnd, WM_GETICON, ICON_BIG, 0);
	if (mainwindow_icon) {
		SendMessage(windows[window_id].hWnd, WM_SETICON, ICON_BIG, (LPARAM)mainwindow_icon);
	}
	return window_id;
}
void DisplayServerWindows::show_window(WindowID p_id) {