Copy-as-Markdown for AI/chat agent outputs

@mntruell Ok so I do have a feature request! I wish we could copy the output text in the agent chat as markdown and paste elsewhere. Oftentimes I talk to the agent about tech plans or explaining things to me, and it does it really well, and I often want to document what it just said. Right now I can only ask it in a second prompt to write down what it just said to me in a md file. This costs tokens! If I do a plain copy paste, the formatting is lost. I know the LLM output is already in markdown so it's just a matter of adding a simple feature to copy as markdown and paste as raw markdown.