Add edit permission check for display set modal and update template

atlas/templates/atlas/case_displayset_modal.html

@@ -1,6 +1,9 @@
 <div class="case-displayset-modal">
     <div class="mb-3">
         <h5>{{ ds.name }}</h5>
+        {% if can_edit %}
+            <a href="{% url 'atlas:case_displaysets_edit' ds.pk %}" class="btn btn-sm btn-outline-secondary ms-2">Edit display set</a>
+        {% endif %}
         {% if ds.description %}
             <div class="text-muted">{{ ds.description }}</div>
         {% endif %}
@@ -8,7 +11,7 @@
 
     {# Viewer area for the modal - mounted by rad/static/dv3d bundle #}
     <div class="mb-3">
-        <div id="modal_viewer_{{ ds.pk }}" class="dicom-viewer-root" style="height:420px;" data-auto-cache-stack="false" data-annotationjson="{{ ds.annotations|escapejs }}" data-viewerstate="{{ ds.viewerstate|escapejs }}"></div>
+        <div id="modal_viewer_{{ ds.pk }}" class="dicom-viewer-root" style="height:420px;" data-auto-cache-stack="false" data-annotationjson="{{ ds.annotations }}" data-viewerstate="{{ ds.viewerstate }}"></div>
     </div>
 
     {% if ds.viewerstate and ds.annotations %}