feat: add Korean language support

i18n/request.ts

@@ -26,6 +26,9 @@ export default getRequestConfig(async ({ requestLocale }) => {
     case 'ja':
       messages = (await import('../locales/ja/common.json')).default;
       break;
+    case 'ko':
+      messages = (await import('../locales/ko/common.json')).default;
+      break;
     case 'nl':
       messages = (await import('../locales/nl/common.json')).default;
       break;

i18n/routing.ts

@@ -1,11 +1,11 @@
 import { defineRouting } from 'next-intl/routing';
 
 export const routing = defineRouting({
-  locales: ['en', 'fr', 'de', 'es', 'it', 'ja', 'nl', 'pt', 'ru'],
+  locales: ['en', 'fr', 'de', 'es', 'it', 'ja', 'ko', 'nl', 'pt', 'ru'],
   defaultLocale: 'en',
   localePrefix: 'never'
 });
 
 export const locales = routing.locales;
 export const defaultLocale = routing.defaultLocale;
-export type Locale = (typeof locales)[number];
+export type Locale = (typeof locales)[number];