[Date Picker]: disabled dates can be manually entered and applied

[NatalliaAlieva]

Description

In the Date Picker, users should not be able to select disabled dates. While clicking on a disabled date does nothing (as expected), manually entering a disabled date in the input field allows it to be applied. Additionally, users can first select a valid date and then modify it to a disabled date, which also gets applied.

Steps to Reproduce

1. Open Disable Dates example in the Date Picker.
2. Identify disabled dates in the calendar.
3. Manually type the disabled date into the input field and click outside the field.
4. Observe that the disabled date is applied.
5. Select a valid date using the calendar.
6. Edit the selected date manually in the input field, changing it to a disabled date.
7. Observe that the disabled date remains applied.

Actual result

The Date Picker allows users to apply disabled dates when entered manually.

Screen.Recording.2025-03-11.at.15.23.33.mov

Expected result

The Date Picker should validate manually entered dates and prevent applying disabled ones.

Environment

• UUI version: 5.13.2
• Browser name: any
• Operating System: any