Add semantic UI styling to the submission form

opentech/apply/dashboard/templates/dashboard/dashboard.html

 {% extends "base.html" %}
 {% load render_table from django_tables2 %}
 
+{% block extra_css %}
+    {# To remove after the demo and we have some style #}
+    <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/semantic-ui/2.2.9/semantic.min.css"/>
+{% endblock %}
+
 {% block content %}
 <h1>Recieved Content</h1>
 <h3>Track and explore recent submissions</h3>

opentech/apply/dashboard/templates/dashboard/tables/table.html

-{% extends 'django_tables2/table.html' %}
+{% extends 'django_tables2/semantic.html' %}
+{# Change back to after demo: extends 'django_tables2/table.html' #}
 
 {# example of how to extend the table template #}
 {% block table.tbody.row %}