chore: Update translations from Crowdin (#5523)

app/javascript/dashboard/i18n/locale/zh_CN/settings.json

@@ -197,11 +197,12 @@
     "REPORTS_OVERVIEW": "Overview",
     "FACEBOOK_REAUTHORIZE": "您的 Facebook 连接已过期，请重新连接您的 Facebook 页面以继续服务",
     "HELP_CENTER": {
+      "TITLE": "Help Center (Beta)",
       "ALL_ARTICLES": "All Articles",
       "MY_ARTICLES": "My Articles",
       "DRAFT": "Draft",
       "ARCHIVED": "Archived",
-      "CATEGORY": "Category",
+      "CATEGORY": "类别",
       "CATEGORY_EMPTY_MESSAGE": "No categories found"
     },
     "DOCS": "Read docs"
@@ -256,7 +257,6 @@
       "GO_TO_SETTINGS": "Go to Settings",
       "SWITCH_CONVERSATION_STATUS": "Switch to the next conversation status",
       "SWITCH_TO_PRIVATE_NOTE": "Switch to Private Note",
-      "TOGGLE_RICH_CONTENT_EDITOR": "Toggle Rich Content editor",
       "SWITCH_TO_REPLY": "Switch to Reply",
       "TOGGLE_SNOOZE_DROPDOWN": "Toggle snooze dropdown"
     },