Option to wait until all output is ready

Q CLI is great! However it often outputs too fast for me.

I would be great if we could do a `q chat --wait-for-all-output` option so that Q doesn't output anything until **everything** is ready.

Or a `q chat --less-style-output` where you get a scroll-friendly terminal output like you see when you do `less my_file.txt` or `man echo` and it will **update the output without scrolling the screen** as the response becomes available. In this scenario, if you scroll and there's more available, it would reveal it. Otherwise, it doesn't move the screen until you do `Page Up` or `Page Down`.