UIScreen break on macOS platform

[yujinqiu]

df53da2#diff-6baec68aae1f8ccb4a7baf5737f9fa799b55415787a3f719fab51f59edc568e7R14

        let scale = await UIScreen.main.scale * 2

There is not UIScreen on macOS platform

[Sherlouk]

Fixed with 64e24ee, released under 0.5.0