New translations irc.lang.json (Finnish)

languages/fi-FI-irc.lang.json

   "Account already exists": "",
   "Account created": "",
   "Account created, pending verification; verification code has been sent to %s": "",
-  "Account does not exist": "",
-  "Account: %s": "",
+  "Account does not exist": "Tili en ole",
+  "Account: %s": "Tili: %s",
   "Actual user@host, Actual IP": "",
   "Added D-Line for %s": "",
   "Added K-Line for %s": "",