Add mising lang values

lib/utils/i18n.dart

@@ -18,6 +18,8 @@ mixin LocalizationsProvider on LocaleCodeAware {
   static final Map<String, Map<String, String>> _localizedValues = {
     'en': {
       // STARTER: lang key - do not remove comment
+      'payment_type_credit': 'Payment Type Credit',
+      'payment_type_debit': 'Payment Type Debit',
       'send_emails_to': 'Send Emails To',
       'primary_contact': 'Primary Contact',
       'all_contacts': 'All Contacts',