Feature Request: Add quarters support to format field of DatePicker

[kentmkmb]

Hi,
I need to display the quarter number of a date in the DatePicker’s field.

Example (using the Day.js format):

• Format string: "YYYY[Q]Q"
• Expected output: "2025Q1"
• Actual output: "2025QQ"

Could you please add support for quarters?

[korvin89]

сс @ValeraS