WebHost: fix sample yamls that have no options.

WebHost: hide hidden games from templates listing

WebHostLib/templates/options.yaml

@@ -68,4 +68,5 @@ progression_balancing:
     {%- else %}
     {{ yaml_dump(option.default) | indent(4, first=False) }}
   {%- endif -%}
-  {%- endfor -%}
+  {%- endfor -%}
+  {% if not options %}{}{% endif %}

WebHostLib/templates/templates.html

@@ -14,7 +14,7 @@
     <h1>Option Templates (YAML)</h1>
     <ul>
         {% for file in files %}
-        <li><a href="{{ url_for('static', filename="generated/"+file) }}">{{ file }}</a></li>
+        <li><a href="{{ url_for('static', filename="generated/"+file+".yaml") }}">{{ file }}</a></li>
         {% endfor %}
     </ul>
     </div>