[ofd] add chat-action 'typing'

plugins/ofd.lisp

@@ -134,6 +134,7 @@
 (def-message-handler ofd-handler (-10)
   (let ((parsed (parse-qt *text*)))
     (when parsed
+      (telegram-send-chat-action *chat-id* "typing")
       (let ((cheque (apply #'receive parsed)))
         (if cheque
             (let ((ledger-package (find-package :chatikbot.plugins.ledger))