Add XDVDFS as a live embed on the docs page

[MasonT8198]

This is a rough edit and required almost 0 effort on my part honestly

I think it'd be nice to just have the tool on the live site, it functions correctly, I plan on making the iframe scrollbar less apparent and fix the scaling issues, as long as @antangelo would be fine with it, as well as matt

[MasonT8198]

I also think I'll add the button back in below it, changing the text above to reflect using the embed, or the option to visit the repo

either or.