get _settings() {
      return {
        sortOrder: JSON.parse(JSON.stringify(this.initSortOrderItems)),
        sortBy: JSON.parse(JSON.stringify(this.initSortByItems)),
        filters: this.filterItems.map(item => {
          return {
            text: item.text,
            selected: false,
            filterOptions: item.values.map(optionValue => {
              return {
                text: optionValue.text,
                selected: optionValue.selected
              };
            })
          };
        })
      };
    }
Returns the current settings (current state of all lists).