Try this in Customize - Theme - </head>
<script>
Discourse.ExternalNavItem = Discourse.NavItem.extend({
href : function() {
return this.get('href');
}.property('href')
});
I18n.translations.en.js.filters.users = { title: "Users", help: "User leaderboard" };
Discourse.NavItem.reopenClass({
buildList : function(category, args) {
var list = this._super(category, args);
list.push(Discourse.ExternalNavItem.create({href: '/users', name: 'users'}));
return list;
}
});
</script>