Update apps/app/public/static/locales/zh_CN/translation.json

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

apps/app/public/static/locales/zh_CN/translation.json

@@ -488,7 +488,7 @@
   "sidebar_ai_assistant": {
     "reference_pages_label": "参考页面",
     "recent_chat": "最近聊天",
-    "No recent chat": "最近没有聊天",
+    "no_recent_chat": "最近没有聊天",
     "knowledge_assistant_placeholder": "问我任何问题。",
     "editor_assistant_placeholder": "有什么需要帮忙的吗？",
     "summary_mode_label": "摘要模式",