message: Appropriately colors status messages
diff: = collaborator.get('username')
  if action === 'confirm' && current_user.id === collaborator.id
  - .CollaboratorItem__status.Color--state-alert
  + .CollaboratorItem__status
  + span.Color--state-alert
  | You will lose access to this channel. Are you sure?
  else if action === 'confirm'
  - .CollaboratorItem__status.Color--state-alert
  + .CollaboratorItem__status
  + span.Color--state-alert
  | Are you sure?
  .CollaboratorItem__actions
  