Don't display empty sections on the homepage

templates/macros.html.tera

@@ -77,10 +77,12 @@
 </svg>
 {% endmacro %}
 {% macro home_feed(title, link, articles) %}
+    {% if articles | length > 0 %}
         <h2>{{ title | _ }} &mdash; <a href="{{ link }}">{{ "View all" | _ }}</a></h2>
         <div class="cards spaced">
             {% for article in articles %}
                 {{ macros::post_card(article=article) }}
             {% endfor %}
         </div>
+    {% endif %}
 {% endmacro %}