Rename tardinesses to tardiness

aleksis/apps/alsijil/templates/alsijil/class_register/person.html

@@ -48,7 +48,7 @@
         </li>
       {% endfor %}
     </ul>
-    <h5>{% trans "Statistics on absences, tardinesses and remarks" %}</h5>
+    <h5>{% trans "Statistics on absences, tardiness and remarks" %}</h5>
     <ul class="collapsible">
       {% for school_term, stat in stats %}
         <li {% if forloop.first %}class="active"{% endif %}>