Switch back to using form-based login/logout

I've decided I want this application to be a progressive enhancement
application. That means that I'm not going to keep dealing with the
insanity that is Javascript bundling and transpiling and building the
entire UI in JS. I want to believe I can treat the web the way that it's
been designed for decades - as a document platform with enhancement
capabilities rather than as an emerging VM

templates/login.html

@@ -0,0 +1,9 @@
+{% extends 'layout.html' %}
+{% block body %}
+<h1>Please log in</h1>
+<form action="/login/" method="POST">
+	<label>username</label><input type="text" name="username"></input>
+	<label>password</label><input type="password" name="password"></input>
+	<input type="submit">Log in</input>
+</form>
+{% endblock %}