adding listing deadline to apply home page listings if there is one

opentech/apply/home/templates/apply_home/includes/apply_listing.html

@@ -4,6 +4,12 @@
 <div class="listing listing--not-a-link">
     <div>
         <h4 class="listing__title listing__title--link">
+            {% if details.deadline %}
+                <p class="listing__deadline">
+                    <svg class="icon icon--calendar icon--small"><use xlink:href="#calendar"></use></svg>
+                    <span>Next deadline: {{ details.deadline|date:"M j, Y" }}</span>
+                </p>
+            {% endif %}
             {# details may be None, so be more verbose in the handling of the title #}
             {% if page.title %}
                 {% if details %}