luci-app-ddns: sort list of services

It makes it much easier to find selected service provider.

Signed-off-by: Rafał Miłecki <rafal@milecki.pl>

applications/luci-app-ddns/htdocs/luci-static/resources/view/ddns/overview.js

@@ -91,6 +91,8 @@ return view.extend({
 				_this.services[service.name.replace('.json','')] = true
 			});
 
+			this.services = Object.fromEntries(Object.entries(this.services).sort());
+
 			list_service.forEach(function (service) {
 				if (!_this.services[service])
 					_this.services[service] = false;