Styles into own file, minor tweaks

* Got rid of inline styles, moved into public/css/commandstar.css
* Set max-height and overflow on the player list so that it scrolls when it
  gets large
* Player list is a little more condensed
Removed inline styles, proper chat scroll

* Inline styles are terrible, moved to external CSS
* Chat div should now scroll to bottom every time, not just height 9999