Add more tax categories

lib/constants.dart

@@ -199,13 +199,21 @@ const String kTaxCategoryDigital = '2';
 const String kTaxCategoryServices = '3';
 const String kTaxCategoryShipping = '4';
 const String kTaxCategoryExempt = '5';
+const String kTaxCategoryReducedTax = '6';
+const String kTaxCategoryOverrideTax = '7';
+const String kTaxCategoryZeroRated = '8';
+const String kTaxCategoryReverseTax = '9';
 
 const kTaxCategories = {
-  kTaxCategoryPhysical: 'Physical Goods',
-  kTaxCategoryDigital: 'Digital Products',
-  kTaxCategoryServices: 'Services',
-  kTaxCategoryShipping: 'Shipping',
-  kTaxCategoryExempt: 'Tax Exempt',
+  kTaxCategoryPhysical: 'physical_goods',
+  kTaxCategoryDigital: 'digital_products',
+  kTaxCategoryServices: 'services',
+  kTaxCategoryShipping: 'shipping',
+  kTaxCategoryExempt: 'tax_exempt',
+  kTaxCategoryReducedTax: 'reduced_tax',
+  kTaxCategoryOverrideTax: 'override_tax',
+  kTaxCategoryZeroRated: 'zero_rated',
+  kTaxCategoryReverseTax: 'reverse_tax',
 };
 
 const String kCountryUnitedStates = '840';

lib/utils/i18n.dart

@@ -18,6 +18,10 @@ mixin LocalizationsProvider on LocaleCodeAware {
   static final Map<String, Map<String, String>> _localizedValues = {
     'en': {
       // STARTER: lang key - do not remove comment
+      'reduced_tax': 'Reduced Tax',
+      'override_tax': 'Override Tax',
+      'zero_rated': 'Zero Rated',
+      'reverse_tax': 'Reverse Tax',
       'updated_tax_category': 'Successfully updated the tax category',
       'updated_tax_categories': 'Successfully updated the tax categories',
       'set_tax_category': 'Set Tax Category',
@@ -99373,6 +99377,22 @@ mixin LocalizationsProvider on LocaleCodeAware {
       _localizedValues[localeCode]['updated_tax_categories'] ??
       _localizedValues['en']['updated_tax_categories'];
 
+  String get reducedTax =>
+      _localizedValues[localeCode]['reduced_tax'] ??
+      _localizedValues['en']['reduced_tax'];
+
+  String get overrideTax =>
+      _localizedValues[localeCode]['override_tax'] ??
+      _localizedValues['en']['override_tax'];
+
+  String get zeroRated =>
+      _localizedValues[localeCode]['zero_rated'] ??
+      _localizedValues['en']['zero_rated'];
+
+  String get reverseTax =>
+      _localizedValues[localeCode]['reverse_tax'] ??
+      _localizedValues['en']['reverse_tax'];
+
 // STARTER: lang field - do not remove comment
 
   String lookup(String key) {