Add mark2 overview page and update navigation for improved marking workflow

templates/exam_list.html

@@ -12,7 +12,10 @@
                         <a href='{% url "generic:examcollection_detail" exam.examcollection_id %}' title="This exam is part of the collection {{exam.examcollection.name}}"><i class="bi bi-collection"></i></a>
                     {% endif %}
                 </span>
-                {% if marking %}<a href="{% url app_name|add:':mark_overview' pk=exam.pk %}" class="flex-col-half">Mark</a>{% endif %}
+                {% if marking %}
+                    <a href="{% url app_name|add:':mark_overview' pk=exam.pk %}" class="flex-col-half">Mark</a>
+                    {% if app_name == 'anatomy' %}<a href="{% url 'anatomy:mark2_overview' pk=exam.pk %}" class="flex-col-half">Mark2</a>{% endif %}
+                {% endif %}
                 <span class="flex-col">
                     <a href="{% url app_name|add:':exam_cids' exam_id=exam.pk %}">Candidates</a> <span class="candidate-counts">[<span title="Number of active CID users">
                         {{exam.valid_cid_users.count}}