better html title building

web/templates/layout.html

@@ -4,9 +4,9 @@
     <meta charset="UTF-8">
     <meta name="viewport" content="width=device-width, initial-scale=1.0">
     {% if title %}
-        <title>AQI - {{ title }}</title>
+        <title>LPB Air - {{ title }}</title>
     {% else %}
-        <title>AQI</title>
+        <title>Luang Prabang Air Quality</title>
     {% endif %}
     <link rel="shortcut icon" href="{{ url_for('static', filename='favicon.ico') }}">
     <script src="{{ url_for('static', filename='js/lightbox.js') }}"></script>