Description

Linked issue: #5759

Problem
As mentioned in the linked ticket, we are having an issue when the user tries to clear the startDate value (when the endDate is available) using the date input, suddenly the datepicker becomes unresponsive. User can't see any value in the date input and they won't be able to select any new value from the date picker popup also.

Changes

• Update Input Value get logic to return empty string only when both startDate & endDate is null. Because the current logic is returning empty string when the startDate is not available regardless of checking the existence of the endDate
• Update Input change logic to properly handle start date change when endDate is available. It'll either set the startDate by retaining the endDate (if its less than the existing endDate) or set the startDate by clearing the endDate (If the existing endDate is less than the current startDate).
• Update the Calendar Popup selection logic to properly handle the update of start date when the endDate is available

Contribution checklist

• I have followed the contributing guidelines.
• I have added sufficient test coverage for my changes.
• I have formatted my code with Prettier and checked for linting issues with ESLint for code readability.