fix overflow bug in send_ics mail for VAD
Created by: adipasquale
linked to https://trello.com/c/YCt2zJFe/663-vadnotification-d%C3%A9faut-daffichage-adresse-dans-le-mail
Created by: adipasquale
linked to https://trello.com/c/YCt2zJFe/663-vadnotification-d%C3%A9faut-daffichage-adresse-dans-le-mail