Default marker icon is not showing in prod environment

[Bakhtiyar-Garashov]

It seems default marker icon path is somehow ruined when deploying app to production. The same issue which is described here https://stackoverflow.com/questions/41144319/leaflet-marker-not-found-production-env

More about issue with original Leaflet project : https://github.com/Leaflet/Leaflet/issues/4968