docs: function App(config) {
      this._config = config;
      this.user = null;
      this.token = null;
      this.isDashboardLoaded = false;
      this.room = null;
      // Elements
      this.page = document.querySelector('#page');
      this.sidebar = null;
      this.content = null;
      this.userListConteiner = null;
      this.init(this._config);
      this.loading = true;
  }