Minor .desktop file issues: Closes #5942
Minor .desktop file issues: Closes #5942

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