fix: pluralize dashboard message

Author: amcsz

intranet/templates/dashboard/dashboard.html

@@ -217,12 +217,15 @@ <h3>
                 {% endif %}
                 {% if already_teacher_approved %}
                     {% if self_awaiting_teacher %}<br>{% endif %}
-                    <h3> <i class="fas fa-info-circle"></i> There {% if already_teacher_approved|length == 1 %}is 1 announcement request{% else %}are {{ already_teacher_approved|length }} announcement requests{% endif %} you have approved and {% if already_teacher_approved|length == 1 %}is{% else %}are{% endif %} pending admin approval</h3>
+                    <h3>
+                    <i class="fas fa-info-circle"></i>
+                    There {{ already_teacher_approved|length|pluralize:"is,are" }} {{ already_teacher_approved|length }} announcement request{{ already_teacher_approved|length|pluralize }} you have approved and {{ already_teacher_approved|length|pluralize:"is,are" }} pending admin approval
+                    </h3>
                     <ul>
                         {% for req in already_teacher_approved %}
                             <li>{{ req }} -- requested by {{ req.user.full_name }}</li>
                         {% endfor %}
-                    </ul>
+                    </ul>   
                 {% endif %}
             </div>
         {% endif %}