update chinese

Author: Sneezry

_locales/zh_CN/messages.json

@@ -294,15 +294,15 @@
         "description": "Download OTP URL backup file."
     },
     "otp_unsupported_warn": {
-        "message": "You have one or more Steam or Blizzard accounts. Unencrypted backups will not use standardized backup format.",
+        "message": "您添加了Steam或战网账号，所以备份文件将不会使用标准输出格式。",
         "description": "Warning if using account that is not supported by standard backup format."
     },
     "otp_backup_inform": {
-        "message": "You can import backups from some other applications.",
+        "message": "您可以从一些其它的应用中导入备份。",
         "description": "Info text on import page"
     },
     "otp_backup_learn": {
-        "message": "Learn more",
+        "message": "了解更多",
         "description": "learn more link on import page. Placed after otp_backup_inform"
     }
 }