Update frontend and forms

ojusomap/templates/404.html

@@ -1,9 +1,13 @@
 {% extends 'base_page.html' %}
 
 {% block title %}
-    Shucks.
-{% endblock %}
+    Oh no.
+{% endblock title %}
 
 {% block description %}
-You've taken a wrong turn and we can't find the page you're looking for.
-{% endblock %}
+    This page doesn't exist.
+{% endblock description %}
+
+{% block inner %}
+    <a class="btn btn-primary btn-block" href="{% url 'index' %}">{% trans 'Go to the homepage' %}</a>
+{% endblock inner %}