Add functionality to adjust recurring payment dates.

Presently there is no UI option to adjust the payment date for recurring payments for a Nitro subscription. I would like to have the option to move my payment date move backwards, and when the payment triggers, add an additional [recurring duration] of Nitro to my current amount.

For example, if my payment date for annual Nitro subscription is due on June 22 2022, then I would like to be able to move the payment date to June 1 2022 (arbitrary choice between now and June 22 2022). If I cancel my subscription before June 1 2022, then I lose my annual subscription on June 22 2022. If I cancel my subscription after June 1 2022, then I lose my annual subscription on June 22 2023.