feat: add Discourse desktop shortcut #508

Job	Run time
build / image (main, aurora, latest)	7m 37s
build / image (main, aurora-dx, latest)	11m 3s
build / image (nvidia, aurora, latest)	7m 29s
build / image (nvidia, aurora-dx, latest)	11m 29s
build / image (asus, aurora, latest)	1m 34s
build / image (asus, aurora-dx, latest)	2m 14s
build / image (asus-nvidia, aurora, latest)	1m 32s
build / image (asus-nvidia, aurora-dx, latest)	1m 45s
build / image (surface, aurora, latest)	34s
build / image (surface, aurora-dx, latest)	37s
build / image (surface-nvidia, aurora, latest)	37s
build / image (surface-nvidia, aurora-dx, latest)	1m 7s
build / Check all aurora latest builds successful	2s
build / iso	0s
	47m 40s

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