Render table and folium map as iframe

app/templates/visualization.html

@@ -3,6 +3,7 @@
 
 {% block app_content %}
 <h1>Dataset visualization</h1>
+<iframe class="map", src="/map" width="500" height="500"></iframe>
 {{ table|safe }}
 <p><a href="{{ url_for('data') }}">Back</a></p>
 {% endblock %}