Resolve "Tag blog posts with projects, target groups, and maybe tags"

Closes #31 (closed)

templates/pages/content.html

@@ -17,4 +17,14 @@
       {% endblock content %}
     </div>
   </section>
+  {% set blog_taxonomy = get_taxonomy_term(kind="aspekt", term=page.title, include_pages=true, required=false) %}
+  {% if blog_taxonomy and blog_taxonomy.pages %}
+    {% set posts = blog_taxonomy.pages | filter(attribute="date") %}
+    {% if posts %}
+      <aside>
+        {% set title="Verwandte Posts aus dem Teckids-Blog" %}
+        {% include "blog/section.html" %}
+      </aside>
+    {% endif %}
+ {% endif %}
 {% endblock %}