resizing is janky/jerky/slow on at least Wayland with winit 0.20 beta

[todo]

https://github.com/milkey-mouse/planets/blob/ba9dfa4d4e03db7f2d510d830541adc17a0e993f/src/window.rs#L77-L82

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This issue was generated by todo based on a // TODO: comment in ba9dfa4.