chore: Update translations (#9236)

- update translations 

------------------
Co-authored-by: Sojan <sojan@pepalo.com>

app/javascript/widget/i18n/locale/ko.json

@@ -33,7 +33,7 @@
   ],
   "START_CONVERSATION": "대화 시작",
   "END_CONVERSATION": "End Conversation",
-  "CONTINUE_CONVERSATION": "Continue conversation",
+  "CONTINUE_CONVERSATION": "대화 계속하기",
   "YOU": "You",
   "START_NEW_CONVERSATION": "Start a new conversation",
   "VIEW_UNREAD_MESSAGES": "You have unread messages",
@@ -112,7 +112,7 @@
   "PORTAL": {
     "POPULAR_ARTICLES": "Popular Articles",
     "VIEW_ALL_ARTICLES": "View all articles",
-    "IFRAME_LOAD_ERROR": "There was an error loading the article, please refresh the page and try again."
+    "IFRAME_LOAD_ERROR": "문서를 불러오는 중 오류가 발생했습니다. 페이지를 새로고침 한 후 다시 시도해 주세요."
   },
   "ATTACHMENTS": {
     "image": {