Markdown support

[Kesha2447]

When the model returns a response in markdown format (for example, if you request python code), it is not formatted as in GPT, but simply outputs pure markdown.

I would like to get a display taking into account markdown, because now the answers are hard to read

[Kesha2447]

I think this can be done upon completion, replace markdown tags with html tags with a certain style. For example, for python, I added the following code to myself, but it would be better to connect the library for markdown.