differentiating between collapsed and general submitted response step view

apps/openassessment/templates/openassessmentblock/oa_response_submitted.html

 {% extends "openassessmentblock/oa_response.html" %}
 
 {% block list_item %}
-<li id="openassessment__response" class="openassessment__steps__step step--response is--submitted is--unavailable ui-toggle-visibility">
+<li id="openassessment__response" class="openassessment__steps__step step--response is--submitted is--unavailable ui-toggle-visibility is--expanded">
 {% endblock %}
 
 {% block body %}

apps/openassessment/templates/openassessmentblock/oa_response_submitted_collapsed.html

+{% extends "openassessmentblock/oa_response.html" %}
+
+{% block list_item %}
+<li id="openassessment__response" class="openassessment__steps__step step--response is--submitted is--unavailable ui-toggle-visibility">
+{% endblock %}
+
+{% block body %}
+    <div class="step__content">
+        <!-- user's response -->
+        <article class="submission__answer__display">
+            <h3 class="submission__answer__display__title">Your Submitted Response</h3>
+
+            <div class="submission__answer__display__content">
+                {{ student_submission.answer }}
+            </div>
+        </article>
+    </div>
+{% endblock %}