feature: Canvas contextual menu allowing to hide/edit/expand/collapse the selection
feature: Canvas contextual menu allowing to hide/edit/expand/collapse the selection

FIRSTdotorg/MISP,FIRSTdotorg/MISP,devnull-/MISP,Rafiot/MISP,MISP/MISP,SteveClement/MISP,FloatingGhost/MISP,Rafiot/MISP,MISP/MISP,SteveClement/MISP,SteveClement/MISP,MISP/MISP,devnull-/MISP,FIRSTdotorg/MISP,FloatingGhost/MISP,Rafiot/MISP,Rafiot/MISP,SteveClement/MISP,FloatingGhost/MISP,FloatingGhost/MISP,FIRSTdotorg/MISP,devnull-/MISP,MISP/MISP,SteveClement/MISP,devnull-/MISP,MISP/MISP