Back arrow on coursebook page

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

@@ -2,10 +2,11 @@
 {% load static i18n %}
 
 {% block page_title %}
+  <v-btn x-large icon color="primary" :href="urls.select_coursebook()"><v-icon>mdi-chevron-left</v-icon></v-btn>
   {% trans "Coursebook" %}
   {{ lesson }}
 {% endblock %}
-{% block browser_title %}{% trans "Coursebook" %}{{ lesson }}{% endblock %}
+{% block browser_title %}{% trans "Coursebook" %} {{ lesson }}{% endblock %}
 {% block content %}
 <course-book></course-book>
 {% endblock %}