docs(ko): add ko-KR translation (#2320)

Author: niceplugin

Diff for: packages/docs/.vitepress/config/index.ts

@@ -14,5 +14,10 @@ export default defineConfig({
       lang: 'es-ES',
       link: 'https://es-pinia.vercel.app/',
     },
+    ko: {
+      label: '한국어',
+      lang: 'ko-KR',
+      link: 'https://pinia.vuejs.kr/',
+    },
   },
 })