Add missing load for template tags

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

 {# -*- engine:django -*- #}
 
 {% extends "core/base.html" %}
-{% load material_form i18n week_helpers static data_helpers %}
+{% load material_form i18n week_helpers static data_helpers rules %}
 
 {% block browser_title %}{% blocktrans %}Week view{% endblocktrans %}{% endblock %}
 
@@ -35,7 +35,8 @@
 
 
   <div class="row">
-    <h4 class="col s12 m6">{% blocktrans with el=el week=week.week %}CW {{ week }}: {{ instance }}{% endblocktrans %} </h4>
+    <h4 class="col s12 m6">{% blocktrans with el=el week=week.week %}CW {{ week }}:
+      {{ instance }}{% endblocktrans %} </h4>
     {% include "chronos/partials/week_select.html" with wanted_week=week %}
   </div>