Change: Emails to FES vendors are now logged with the vendor ID when logging is enabled.
Fix: Emails to FES vendors could have been linked to a customer.
Fix: When an email address was selected, the contact name was not visible in the "to" field.
Dev: Update how licensing is instantiated.
Dev: Refactor how the plugin is booted and checks for requirements.
Dev: Improved compatibility with PHP 8.1.
