Apply new style to Notes pages.

templates/note_mindmap_test_backup.html

@@ -0,0 +1,8 @@
+{% extends "layout.html" %}
+
+{% block content %}
+<div class="note-mindmap-container">
+    <h1>Mind Map Test - {{ note.title }}</h1>
+    <p>If you see this, the template is working.</p>
+</div>
+{% endblock %}