Fix minor issues

- fixed indentation
- moved navbars and policy popup to "partials"
- fixed broken image if website icon wasn't set

index.hbs

@@ -1,24 +1,22 @@
 {{!< default}}
 
 <div class="mind-index-header_main unselectable" id="vantajs">
-  			<h1>{{@site.title}}</h1>
-        <i class="mind-global-header_arrow-down mind-global-header_arrow-down-big"></i>
+    <h1>{{@site.title}}</h1>
+    <i class="mind-global-header_arrow-down mind-global-header_arrow-down-big"></i>
 </div>
 
 
 <main>
-  <nav class="mind-global-navbar_secondary unselectable">
-    {{navigation type="secondary"}}
-  </nav>
-  <div class="mind-content_main">
-    <div class="mind-feed-content_main">
+    {{> "navbar-secondary"}}
+    <div class="mind-content_main">
+        <div class="mind-feed-content_main">
 
-      <!-- Looping through every post -->
-      {{#foreach posts}}
-      	{{> "post-card-big"}}
-      {{/foreach}}
+            <!-- Looping through every post -->
+            {{#foreach posts}}
+            {{> "post-card-big"}}
+            {{/foreach}}
+        </div>
     </div>
-  </div>
 </main>
 
 <!-- Vanta.JS Scripts to make the background cool, but disabled on mobile -->