informTrapsKeyboardFocusGotDisabled({ disabledCtrl, findNewTrap = true } = {}) {
    const next = this.shownList.find(
      ctrl => ctrl !== disabledCtrl && ctrl.trapsKeyboardFocus === true,
    );
    if (next) {
      if (findNewTrap) {
        next.enableTrapsKeyboardFocus();
      }
    } else if (this.siblingsInert === true) {
      this.__siblingsInert = false;
    }
  }
@param {{ disabledCtrl?:OverlayController, findNewTrap?:boolean }} options