Convert h2s to h1s where obvious

bookwyrm/templates/edit_user.html

@@ -2,7 +2,7 @@
 {% block content %}
 <div class="block columns">
     <div class="column is-half">
-        <h2 class="title">Profile</h2>
+        <h1 class="title">Profile</h1>
         {% if form.non_field_errors %}
         <p class="notification is-danger">{{ form.non_field_errors }}</p>
         {% endif %}