Putting .config-page-list (sidebar nav) floating to the right as part of the page...

Putting .config-page-list (sidebar nav) floating to the right as part of the page (instead of floating outside the page content). This takes away the dead white space on longer pages by making it grey instead of white (previously this made the page look very unorganized and off-grid in more narrow windows). This also fixes a layout bug in Safari where the tops didn't line up.