Migrate to layout

templates/layouts/base.html

@@ -0,0 +1,12 @@
+<!DOCTYPE html>
+<html>
+    <head>
+        <title>{{ block "title" . }}Ledger Quick Note{{ end }}</title>
+        <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    </head>
+    <body>
+        {{ block "main" . }}
+
+        {{ end }}
+    </body>
+</html>