Fix crash with software renderer and gstreamer versions > 1.18

Disable code signing for the Windows executable and installer until w…

…e get a new certificate set up

Merge pull request #267 from AThomsen/2022refresh

Fix #261, #268 
Build against gstreamer 1.20.3 on Windows
Switch from d3dvideosink to d3dllvideosink on Windows

Fix missing positional argument to spdlog

Update org.openkj.OpenKJ.metainfo.xml

Fix CTD bug introduced in 2.1.31

Also improves the requests burn in testing a bit

Merge branch 'master' of https://github.com/openkj/openkj

Rework column sizing for queue tableview

Update appstream metadata for 2.0.8 stable

Fix fonts not being applied properly to some UI elements on startup o…

…r font change