Merge branch 'issue1901-gtk4' into 'master'

wayland: Use scale from core wl_output protocol

Closes #1901

See merge request !870
10 jobs for master in 23 minutes and 4 seconds (queued for 3 seconds)
Status Job ID Name Coverage
  Build
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flatpak-master:demo

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flatpak-master:icon-browser

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  Deploy
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