### 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)
int height = p2.y - p1.y;
		if (hdc) {
			HBITMAP hbm = CreateCompatibleBitmap(dc, width, height);
			if (hbm) {
				SelectObject(hdc, hbm);
				BitBlt(hdc, 0, 0, width, height, dc, p1.x, p1.y, SRCCOPY);
				BITMAPINFO bmp_info = {};
				bmp_info.bmiHeader.biSize = sizeof(bmp_info.bmiHeader);
				bmp_info.bmiHeader.biWidth = width;
				bmp_info.bmiHeader.biHeight = -height;
				bmp_info.bmiHeader.biPlanes = 1;
				bmp_info.bmiHeader.biBitCount = 32;
				bmp_info.bmiHeader.biCompression = BI_RGB;
				Vector<uint8_t> img_data;
				img_data.resize(width * height * 4);
				GetDIBits(hdc, hbm, 0, height, img_data.ptrw(), &bmp_info, DIB_RGB_COLORS);
				uint8_t *wr = (uint8_t *)img_data.ptrw();
				for (int i = 0; i < width * height; i++) {
					SWAP(wr[i * 4 + 0], wr[i * 4 + 2]);
				}
				img = Image::create_from_data(width, height, false, Image::FORMAT_RGBA8, img_data);
				DeleteObject(hbm);
			}
			DeleteDC(hdc);
		}
		ReleaseDC(NULL, dc);
	}
	return img;
}
float DisplayServerWindows::screen_get_refresh_rate(int p_screen) const {