📪 Mailbox - with couriers and delivery

- Fixed limit handler when limit of item == 1 (thx Otto Skorzeny)

- Added spanish translation (thx Goran)

Affected files:

lua/dn_mailbox/core/sv/sv_main.lua (Line 193)

lua/dn_mailbox/languages/spanish.lua

lua/dn_mailbox/config.lua (Line 11)