excise settings-container and login-container outright. full width babey

app/templates/topics/create.html

@@ -1,7 +1,7 @@
 {% extends "base.html" %}
 {% block title %}creating a topic{% endblock %}
 {% block content %}
-<div class="darkbg settings-container">
+<div class="darkbg">
   <h1>Create topic</h1>
   <form method="post">
     <label for=name>Name</label>

app/templates/topics/edit.html

@@ -1,7 +1,7 @@
 {% extends "base.html" %}
 {% block title %}creating a topic{% endblock %}
 {% block content %}
-<div class="darkbg settings-container">
+<div class="darkbg">
   <h1>Editing topic {{ topic['name'] }}</h1>
   <form method="post">
     <label for=name>Name</label>