fixed tasks

[JasonLovesDoggo]

• fix hijack not working on prod
• Msc not on clubcrawl page
• fix flatpage retrieve (e.g. /api/v3/obj/flatpage/retrieve/20 is failing due to bad filtering
• add Django-hijack or something similar for help with debugging
• delete the master branch (main has everything)
• make username lookup for v3 obj not case sens
• have organizations fields and user\ fields *in api /obj return partial objects
• add admin action on scav to set users as problem setter or logic setter