chore: Update translations from Crowdin (#4772)

Co-authored-by: Pranav Raj S <pranav@chatwoot.com>

app/javascript/dashboard/i18n/locale/ja/conversation.json

@@ -1,6 +1,7 @@
 {
   "CONVERSATION": {
     "404": "左のリストから会話を選択してください",
+    "DASHBOARD_APP_TAB_MESSAGES": "Messages",
     "UNVERIFIED_SESSION": "The identity of this user is not verified",
     "NO_MESSAGE_1": "おっと！受信トレイに顧客からのメッセージがないようです。",
     "NO_MESSAGE_2": " to send a message to your page!",
@@ -30,6 +31,7 @@
     "REPLYING_TO": "以下に返信：",
     "REMOVE_SELECTION": "選択項目を削除",
     "DOWNLOAD": "ダウンロード",
+    "UNKNOWN_FILE_TYPE": "Unknown File",
     "UPLOADING_ATTACHMENTS": "Uploading attachments...",
     "SUCCESS_DELETE_MESSAGE": "Message deleted successfully",
     "FAIL_DELETE_MESSSAGE": "Couldn't delete message! Try again",