Closes #7193 Conversation viewer cleanup
Closes #7193 Conversation viewer cleanup

AtticHacker/geary,AtticHacker/geary,tshikaboom/geary,githubnemo/geary,MohamedIM/geary-unofficial,glebihan/geary,emersion/geary,emersion/geary,emersion/geary,aatishnn/geary,robol/geary,geekvigilante/geary,martinra/geary,kyoushuu/geary,mpdeimos/geary,mjog/geary,githubnemo/geary,martinra/geary,rschroll/geary,martinra/geary,jimbonator/geary,kpiwko/geary,githubnemo/geary,glebihan/geary,jimbonator/geary,jimbonator/geary,robol/geary,robol/geary,AtticHacker/geary,glebihan/geary,tshikaboom/geary,rschroll/geary,aatishnn/geary,abn/geary,aatishnn/geary,mjog/geary,kyoushuu/geary,mjog/geary,tshikaboom/geary