Can't send items via mail
At the moment it's not possible to send items via mail.
Steps to reproduce:
- Go to any mailbox, create new mail to an existing player
- Try to drag&drop any item to one of the five slots of the Mailbox dialogue
- Darg&drop is not possible, however, you may send currants
Exptected behaviour:
- Drop&drop possible
Observed behaviour:
- Drag&Drop impossible