Fix title in templates.

aleksis/apps/untis/templates/untis/untis_import.html

@@ -5,6 +5,7 @@
 {% load material_form i18n %}
 
 
+{% block browser_title %}{% blocktrans %}Import Untis data{% endblocktrans %}{% endblock %}
 {% block page_title %}{% blocktrans %}Import Untis data{% endblocktrans %}{% endblock %}
 
 {% block content %}