Add first version of the frontend

As of now the only usable functionality is signin in/out and managing
authorized users, and even then there is much room for improvement.

Change-Id: Ib87fc6866f69113a230187710de8644b78391917
diff --git a/frontend/index.html b/frontend/index.html
new file mode 100644
index 0000000..3184bf9
--- /dev/null
+++ b/frontend/index.html
@@ -0,0 +1,14 @@
+<!DOCTYPE html>
+<html>
+  <head>
+    <meta charset="utf-8">
+    <title>TWPT Dashboard</title>
+    <link rel="stylesheet" href="https://fonts.googleapis.com/icon?family=Material+Icons">
+    <link rel="stylesheet" href="https://fonts.googleapis.com/css?family=Roboto:300,400,500">
+    <link rel="stylesheet" href="https://fonts.googleapis.com/css?family=Roboto+Mono:300,400,500">
+  </head>
+  <body>
+    <app></app>
+    <script src="https://accounts.google.com/gsi/client" async defer></script>
+  </body>
+</html>