i8n누락 사항 추가 적용

lib/widgets/detail/detail_header_section.dart

@@ -265,23 +265,39 @@ class DetailHeaderSection extends StatelessWidget {
     final loc = AppLocalizations.of(context);
     switch (cycle.toLowerCase()) {
       case '매월':
+      case '월간':
       case 'monthly':
       case '毎月':
+      case '月付':
+      case '月間':
       case '每月':
         return loc.billingCycleMonthly;
       case '분기별':
+      case '분기':
       case 'quarterly':
+      case 'quarter':
+      case '季付':
+      case '季度付':
       case '四半期':
       case '每季度':
         return loc.billingCycleQuarterly;
       case '반기별':
       case 'half-yearly':
+      case 'half yearly':
+      case 'semiannual':
+      case 'semi-annual':
+      case '半年付':
+      case '半年払い':
       case '半年ごと':
       case '每半年':
         return loc.billingCycleHalfYearly;
       case '매년':
+      case '연간':
       case 'yearly':
+      case 'annual':
+      case 'annually':
       case '年間':
+      case '年付':
       case '每年':
         return loc.billingCycleYearly;
       default: