[terra-date-picker] [terra-date-time-picker] Fixed DatePicker focus issues

[adavijit]

Summary

What was changed:

• Focused the button to open calendar after calendar is closed in mobile view.
• Introduced a new prop disableButtonFocusOnClose to optionally disable focusing the button when the calendar is closed.
• Updated jest and wdio screenshots
• Fixed DatePicker Input Field Tabbing issue

Why it was changed:

• The onBlur event is not triggered in mobile view for date time picker because the focus is lost after the calendar is closed.
• Pressing tab from a DateTime input fields should move to the next input field not to the calendar button.

Testing

This change was tested using:

• WDIO
• Jest
• Visual testing (please attach a screenshot or recording)
• Other (please describe below)
• No tests are needed

Reviews

In addition to engineering reviews, this PR needs:

• UX review
• Accessibility review
• Functional review

Additional Details

This PR resolves:

UXPLATFORM-10400 UXPLATFORM-10428

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