Remove redundant server-side rendering

public/manifest.json

@@ -4,7 +4,6 @@
   "description": "API Documentation Browser",
   "start_url": "/",
   "display": "standalone",
-  "background_color": "#EEEEEE",
   "icons": [
     {
       "src": "/images/webapp-icon-32.png",

views/app.erb

@@ -28,13 +28,7 @@
     </nav>
   </header>
   <section class="_sidebar" tabindex="-1">
-    <div class="_list" role="navigation">
-      <% unless @doc %>
-      <% App.docs.each do |slug, doc| %>
-      <a href="/<%= slug %>/" class="_list-item"><%= doc['full_name'] %></a>
-      <% end %>
-      <% end %>
-    </div>
+    <div class="_list" role="navigation"></div>
   </section>
   <div class="_container" role="document">
     <main class="_content _content-loading" role="main"></main>