handleSubmit does nothing

[major-mann]

The documentation seems to indicate that handleSubmit is "used for custom validation".

In https://github.com/Wolox/react-chat-widget/blob/master/dev/App.tsx#L31 it seems to be used that way, but in the code

react-chat-widget/src/components/Widget/index.tsx

Line 80 in d8b205f

handleSubmit?.(userInput);

it doesn't seem to be handled that way, and regardless of the return value the message is dispatched.

Any chance there is a good work around to this?