Set XWayland scaling

[handijk]

XWayland applications are scaled up from their rendered size if output scaling is enabled, this results in blurry and low res applications, to prevent this XWayland applications should be set at startup to render at a set scale, if possible per output (because the scaling could differ per output).

[Enerccio]

Well scaling can change interactively though

[handijk]

I think that's fine as long as the applications are also re-rendered to that scale.