appwrite/public/scripts/views/general/page-title.js

(function(window) {
  window.ls.container.get("view").add({
    selector: "data-page-title",
    repeat: true,
    controller: function(element, document, expression) {
      document.title =
        expression.parse(element.getAttribute("data-page-title")) ||
        document.title;
    }
  });
})(window);