[UPDATED] Braintree Payment Gateway Pro

Updated to v303.8

Release Notes:
- Added: ability to utilize the payment "Terms" field in OpenCart 2 and 3, which are displayed next to the extension title in ( and ) brackets

- Fixed: 3D Secure issues when OpenCart wasn't set to 2 decimals
- Fixed: the Address Mismatch order status setting wasn't working

- Updated: added a note about making sure "Street Address not provided (I)" is unchecked in the Braintree admin panel (Settings > Fraud Management > AVS area) if you want to store cards
- Updated: the order of the AVS/CVV checks is now Street, Postcode, then CVV so they are assigned in order of importance

Updated to v303.9

Release Notes:
- NOTE: The new version of the Braintree PHP library requires PHP 7.2 or later so do not update to this version if you are using an older PHP version.

- Added: a Dark Mode option for websites with dark backgrounds
- Added: "Additional CSS" field to set custom CSS directly in the admin panel

- Fixed: error when including shipping with subscriptions
- Fixed: "Call to undefined method: displayError()" bug with quick checkouts
- Fixed: "Can't use function return value in write context" error on 1.5.x

- Updated: Braintree PHP library to version 6.4.1
- Updated: Braintree Drop-in UI library to version 1.32.0
- Updated: the Create a Charge tab now requires Modify permissions to use