PW WooCommerce Gift Cards Pro 3.1

- Added an Export button to allow downloading a CSV file of existing gift card numbers with balances. Added the ability to overwrite the gift card balance when importing existing numbers.

- New feature: Allow choosing an email design when sending the gift card email from the Balances page in the admin area. New feature: When importing gift card numbers, you can now specify the From and Email Design options. WooCommerce 6.4 compatibility.

- Fix to ensure that the function get_current_screen is available in the current context to prevent an exception on some systems.