fix: Fixes an issue where attachments / malware samples were erroneously coloured white
fix: Fixes an issue where attachments / malware samples were erroneously coloured white

- placeholder hard-coded white class replaced with dynamic value
- Can't check the referenced issue, shame on Norwegian.no for claiming to have wi-fi onboard...

FloatingGhost/MISP,devnull-/MISP,cristianbell/MISP,FloatingGhost/MISP,MISP/MISP,TheDr1ver/MISP,MISP/MISP,MISP/MISP,cristianbell/MISP,FIRSTdotorg/MISP,Rafiot/MISP,FloatingGhost/MISP,Rafiot/MISP,FloatingGhost/MISP,FIRSTdotorg/MISP,cristianbell/MISP,TheDr1ver/MISP,MISP/MISP,MISP/MISP,devnull-/MISP,SteveClement/MISP,TheDr1ver/MISP,SteveClement/MISP,SteveClement/MISP,crruthe/MISP,FIRSTdotorg/MISP,SteveClement/MISP,crruthe/MISP,TheDr1ver/MISP,SteveClement/MISP,crruthe/MISP,devnull-/MISP,devnull-/MISP,Rafiot/MISP,FIRSTdotorg/MISP,Rafiot/MISP,crruthe/MISP,cristianbell/MISP