Inconsistent `Window` Height/Width units between constructor and `UpdateSize`

[Demorome]

The Window constructor uses SDL.SDL_GetWindowSize:

MoonWorks/src/Window.cs

Line 98 in bd841cb

SDL.SDL_GetWindowSize(Handle, out var width, out var height);

Yet UpdateSize uses SDL.SDL_GetWindowSizeInPixels:

MoonWorks/src/Window.cs

Line 232 in bd841cb

SDL.SDL_GetWindowSizeInPixels(Handle, out var w, out var h);

I feel like UpdateSize should be changed to use SDL.SDL_GetWindowSize, for consistency.
And because there's no "InPixels" equivalent to SDL.SDL_SetWindowSize, which is called by Window.SetSize.