ensured footer was pinned to bottom of page for new-ish billboard.html & room_scroll.html pages; introduced mobile landscape layout, incl. leftward 'navbar', rightward 'footer'; ensured z-index primacy of #id_kit_btn, which would here appear behind the kit bar when open; other fixes introduced by problems stemming largely from new landscape styling

src/templates/apps/billboard/billboard.html

@@ -4,7 +4,7 @@
 {% block header_text %}<span>Bill</span>board{% endblock header_text %}
 
 {% block content %}
-<div class="content billboard-page">
+<div class="billboard-page">
     <h2>My Games</h2>
     <ul class="game-list">
         {% for room in my_rooms %}