WebHost: Remove styleController.js and replace functionality with HTML/CSS. (#4852)

* ensure footer stays at bottom of page without JS

* Remove some other usages.

WebHostLib/static/assets/hostGame.js

@@ -6,6 +6,4 @@ window.addEventListener('load', () => {
     document.getElementById('file-input').addEventListener('change', () => {
         document.getElementById('host-game-form').submit();
     });
-
-    adjustFooterHeight();
 });