Add auto-refresh script to web page

templates/dashboard.hbs

@@ -10,6 +10,11 @@
         <link rel="stylesheet" href="https://fonts.googleapis.com/css?family=Ubuntu|Ubuntu+Mono&display=swap">
 
         <title>healthpot</title>
+
+	<script>
+            // refresh the page after 30 seconds
+            setTimeout(location.reload.bind(location), 30000);
+	</script>
     </head>
 
     <body>