The only changes are stylistic in this commit.

- Centered header text
- Moved Hosts, Guests and Sponsors to one line (more compact)
- Removed scrollbar from episode list (can still scroll)
- Set main to a dark background
- Removed the names shown below the guests and sponsors (put them in titles, mouseover the avatar to see) (feel free to revert this if you want)

There will be more changes to be made before this becomes perfect.