Show em dash if there is no phone/mobile number on person view

aleksis/core/templates/core/person/full.html

@@ -164,18 +164,20 @@
               <i class="material-icons small">phone</i>
             </td>
             <td>
-              {% if person.phone_number %}
-                <a href="{{ person.phone_number.as_rfc3966 }}">{{ person.phone_number.as_international }}</a>
+              {% if person.mobile_number %}
+                <a href="{{ person.mobile_number.as_rfc3966 }}">{{ person.mobile_number.as_international }}</a>
+              {% else %}
+                –
               {% endif %}
-              <small>({% trans "home number" %})</small>
+              <small>({% trans "mobile number" %})</small>
             </td>
           </tr>
           <tr>
             <td>
               {% if person.mobile_number %}
                 <a href="{{ person.mobile_number.as_rfc3966 }}">{{ person.mobile_number.as_international }}</a>
+                <small>({% trans "mobile number" %})</small>
               {% endif %}
-              <small>({% trans "mobile number" %})</small>
             </td>
           </tr>
           <tr>