Support Quarto Profiles

[Rahuketu86]

There are some cases where I want to use project post rendering and profiles functionality of quarto in nbdev_preview, and nbdev_docs. This allows me to replace some existing folder with output of another static site folder like notes and observablehq while keeping the navigation intact . I have managed to use the same in regular quarto project an example of which is here: https://zealmaker.com/