Gravity Forms Stripe Addon 5.9.0

- Fixed API mode used to retrieve webhook event when signing secret is configured.

- Added the gform_stripe_charge_pre_create filter. See gform_stripe_charge_pre_create - Gravity Forms Support
- Added translations.
- Fixed spinner appearing when the previous button on the last page of a multi-page non-AJAX form is clicked.
- Fixed Stripe.js request being made when the previous button on the last page of a multi-page form is clicked.
- Fixed a fatal error which could occur if an older version of the Stripe API library is loaded by another plugin.

Fixed spinner appearing when the previous button on the last page of a multi-page non-AJAX form is clicked.