Temporarily remove the recursive nav from the Classic theme

- The recursive call within Handlebars was causing huge memory spikes
- It seems it deep cloned (?) the entire Album objects at every recursive call
- This itself could bloat to several hundred megs of RAM for very large galleries

Replacing it with a simple breadcrumbs navigation for now.

templates/themes/classic/nav.hbs

@@ -1,10 +0,0 @@
-{{#compare id '==' @root.album.id}}
-  <li class="active">
-{{else}}
-  <li>
-{{/compare}}
-  <!-- This album -->
-  <a href="{{relative url}}">{{title}}</a>
-  <!-- And nested album -->
-</li>
-{{#each albums}}{{> nav}}{{/each}}

templates/themes/classic/theme.hbs

@@ -5,11 +5,15 @@
   </a>
 </header>
 
+<!--
+  Breadcrumbs of parent albums
+-->
 {{#compare album.depth '!=' 0}}
-  <nav>
-    {{#each gallery.home.albums}}
-      {{> nav}}
-    {{/each}}
+  <nav class="breadcrumbs">
+    {{#each breadcrumbs~}}
+      <a class="breadcrumb-item" href="{{relative url}}">{{title}}</a>&nbsp;&nbsp;/&nbsp;&nbsp;
+    {{~/each~}}
+    <a class="breadcrumb-item" href="{{relative album.url}}">{{album.title}}</a>
   </nav>
 {{/compare}}
 

templates/themes/classic/theme.less

@@ -59,9 +59,11 @@ nav li {
 nav a {
   color: #666;
   display: inline-block;
-  min-width: 7em;
   padding: 0.4em 1em;
   text-decoration: none;
+  background-color: #33609c;
+  color: #fff;
+  font-weight: bold;
 }
 
 nav li.active {