There is a weird bug with scrolling on iOS (reproducible with Safari on Mac).  It seems `.scrollIntoView()` on an ion-item inside the modal scrolls the parent ion-app component. https://github.com/logisticinfotech/ionic4-datepicker/blob/33f91b7f2ffdc174434b086560db34c640112b84/projects/ionic4-datepicker/src/lib/ionic4-datepicker-modal/ionic4-datepicker-modal.component.ts#L112