feat: add authenticated WebSerial log viewer

src_data/pages/index.html

@@ -155,6 +155,7 @@
             <a href="/dashboard.html" role="button" data-i18n>dashboard.name</a>
             <a href="/settings.html" role="button" data-i18n>settings.name</a>
             <a href="/sensors.html" role="button" data-i18n>sensors.name</a>
+            <a href="/logs.html" role="button" data-i18n>logs.name</a>
             <a href="/upgrade.html" role="button" data-i18n>upgrade.name</a>
             <a href="/restart.html" role="button" class="secondary restart" data-i18n>button.restart</a>
           </div>
@@ -249,4 +250,4 @@
       });
     </script>
   </body>
-</html>
+</html>