🐛 FixedExtentScrollController scrolling issue in DatePicker

[Dusk-afk]

Issue Description
Upon utilization of the DatePicker feature, if the day and/or month fields are deselected, an error message emerges during scrolling within the DatePicker, stating: "FixedExtentScrollController.selectedItem cannot be accessed before a scroll view is built with it." Additionally, occasional occurrences of jagged animations are observable during scrolling.

Steps to Reproduce
To replicate the behavior, follow these steps:

1. Navigate to the DatePicker feature.
2. Disable the day and/or month field.
3. Proceed to scroll within the picker.
4. Observe the error message.

Expected Outcome
The scrolling process should occur seamlessly, devoid of any error messages or jagged animations.

Error Demo