Added login to the application to make authenticated api requests.

templates/index/index.html.twig

@@ -0,0 +1,27 @@
+{% extends 'base.html.twig' %}
+
+{% block title %}Hello IndexController!{% endblock %}
+
+{% block body %}
+    <style>
+        .example-wrapper {
+            margin: 1em auto;
+            max-width: 800px;
+            width: 95%;
+            font: 18px/1.5 sans-serif;
+        }
+
+        .example-wrapper code {
+            background: #F5F5F5;
+            padding: 2px 6px;
+        }
+    </style>
+
+    <div id="app">
+        <loginform></loginform>
+    </div>
+{% endblock %}
+
+{% block javascripts %}
+    {{ encore_entry_script_tags('user') }}
+{% endblock %}