DRY up archive include

- Combine grid and list view into one include

_layouts/archive-taxonomy.html

@@ -7,6 +7,6 @@ author_profile: false
   <h1 class="page__title">{{ page.title }}</h1>
   {% include base_path %}
   {% for post in page.posts %}
-    {% include archive-list-single.html %}
+    {% include archive-single.html %}
   {% endfor %}
 </div>

_layouts/single.html

@@ -57,7 +57,7 @@ layout: default
     {% endif %}
     <div class="grid__wrapper">
       {% for post in site.related_posts limit:4 %}
-        {% include archive-grid-single.html %}
+        {% include archive-single.html type="grid" %}
       {% endfor %}
     </div>
   </div>