The welcome message should not be visible after chat has been started

Tested on my end and the results are as expected 👍🏻

I left a comment suggesting conditional rendering, but I'm pretty sure it was tried, so I'll take a look to see why that effect is not reactive to the history changes.

I also ran into issues with setting a React state from a Deep Chat event handler, and without that the component rendering is not reactive. At one point we should look into how to refactor the component to make use of React state for storing the chat history. I'm sure it was tried when the implementation was put in place, and I'm sure it wasn't straightforward, so I want to acknowledge that it is probably that way for a reason. In any case, I'd be happy to discuss the challenges when the time is right.

I pushed a solution that uses Deep Chat's introMessage property in combination with the deep-chat-temporary-message CSS class. This is great because it's the logic we need provided by Deep Chat, but not so great because of the CSS trickery I had to do to make the message appear according to our design. Because of that, I'm totally fine if my commit gets reverted, and the previously working solution lands instead.

tim.plunkett → made their first commit to this issue’s fork.