Change capacity to be optional and fix capacity field#2113

hei98 wants to merge 7 commits intomasterSamfundet/Samfundet4:masterfrom

heiheidi/web-139-fix-capacity-to-be-not-requiredSamfundet/Samfundet4:heiheidi/web-139-fix-capacity-to-be-not-requiredCopy head branch name to clipboard