feat: add Discourse desktop shortcut #533

Job	Run time
build / image (main, bluefin, latest)	6m 15s
build / image (main, bluefin-dx, latest)	10m 4s
build / image (nvidia, bluefin, latest)	7m 12s
build / image (nvidia, bluefin-dx, latest)	11m 34s
build / image (asus, bluefin, latest)	1m 44s
build / image (asus, bluefin-dx, latest)	2m 15s
build / image (asus-nvidia, bluefin, latest)	2m 16s
build / image (asus-nvidia, bluefin-dx, latest)	2m 16s
build / image (surface, bluefin, latest)	43s
build / image (surface, bluefin-dx, latest)	38s
build / image (surface-nvidia, bluefin, latest)	42s
build / image (surface-nvidia, bluefin-dx, latest)	1m 9s
build / Check all bluefin latest builds successful	2s
build / iso	0s
	46m 50s

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