Name shown twice in user_details.html if username set to email (#4436)

* Update user_detail.html

* Wrap long conditions over multiple lines

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Co-authored-by: Bruno Alla <alla.brunoo@gmail.com>

{{cookiecutter.project_slug}}/{{cookiecutter.project_slug}}/templates/users/user_detail.html

@@ -22,11 +22,17 @@
         {% else %}
           {% raw %}{{ object.username }}{% endraw %}
         {% endif %}
-        {% raw %}
       </h2>
-      {% if object.name %}<p>{{ object.name }}</p>{% endif %}
+      {%- if cookiecutter.username_type == "username" %}
+      {%- raw %}
+      {% if object.name %}
+        <p>{{ object.name }}</p>
+      {% endif %}
+      {%- endraw %}
+      {%- endif %}
     </div>
   </div>
+  {%- raw %}
   {% if object == request.user %}
     <!-- Action buttons -->
     <div class="row">