### 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)
mb->set_position(Vector2(old_x, old_y));
			}
			if (uMsg != WM_MOUSEWHEEL && uMsg != WM_MOUSEHWHEEL) {
				if (mb->is_pressed()) {
					if (++pressrc > 0 && mouse_mode != MOUSE_MODE_CAPTURED) {
						SetCapture(hWnd);
					}
				} else {
					if (--pressrc <= 0 || last_button_state.is_empty()) {
						if (mouse_mode != MOUSE_MODE_CAPTURED) {
							ReleaseCapture();
						}
						pressrc = 0;
					}
				}
			} else {
				
				POINT coords;
				coords.x = mb->get_position().x;
				coords.y = mb->get_position().y;
				ScreenToClient(hWnd, &coords);
				mb->set_position(Vector2(coords.x, coords.y));
			}
			mb->set_global_position(mb->get_position());
			Input::get_singleton()->parse_input_event(mb);
			if (mb->is_pressed() && mb->get_button_index() >= MouseButton::WHEEL_UP && mb->get_button_index() <= MouseButton::WHEEL_RIGHT) {
				
				Ref<InputEventMouseButton> mbd = mb->duplicate();
				mbd->set_window_id(window_id);
				last_button_state.clear_flag(mouse_button_to_mask(mbd->get_button_index()));