you were focused on the last loaded item and that item was\nvery long (extending past the viewport), pressing 'j' would do nothing\nbecause there were no more items loaded yet.\n\nNow, when the user presses 'j' and lands on the last item, we automatically\ntrigger loading more items (if available), ensuring that the next 'j' press\nwill work as expected.\n\nAdded test to verify this behavior works correctly.
