private IEnumerable <NavigationGroup> BuildMenu()
{
var builder = new NavigationBuilder();
builder
.UsingGroup("Scheduler")
.WithDisplayName("Scheduler")
.WithLink("List clients", cfg => cfg.Url("clients").Template("list-clients.html").LinkToGroup())
.WithLink("List commands", cfg => cfg.Url("commands").Template("list-commands.html"))
.WithLink("List logs", cfg => cfg.Url("logs").Template("list-logs.html"))
;
return(builder.Groups.Select(x => x.Build()));
}