Live markdown editor for chat text box

It would be great to have live markdown support in the chat text box. I feel the text box is too small to have a raw text editor and live preview side-by-side like the composer, but having a live markdown view would be great. We are starting to get into the territory of less technical users who are interested in utilizing chat in our business, and the barrier for markdown is a bit tougher.

Admittedly, it'd be nice to have even for the technical people as well

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