[Feature] 优化错误显示

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这个功能与现有的问题有关吗？
尝试优化错误提示

你想要什么功能或者有什么建议？
目前发生错误后唯一的提示只有一个json：

{
  "error": true,
  "message": "Failed to fetch"
}

json中提供的错误信息参考价值较低，非常多的原因都会导致 "Failed to fetch"，现在只能自己重新编译带DevTools的版本才能看到具体错误消息

[Issues-translate-bot]

Bot detected the issue body's language is not English, translate it automatically.

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Title: [Feature] Optimize error display

In order to improve communication efficiency, we have set up an official QQ group and QQ channel. If you encounter any problems during use or construction, please join the group or channel for consultation as soon as possible, unless it is a bug that can be stably reproduced or More creative feature suggestions, otherwise please do not send low-quality and meaningless posts to the Issue area.

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**Is this feature related to an existing issue? **
Try to optimize the error message

**What features do you want or have any suggestions? **
Currently, the only prompt after an error occurs is a json:

{
  "error": true,
  "message": "Failed to fetch"
}

The error information provided in json has low reference value. Many reasons can cause "Failed to fetch". Now you can only see the specific error message by recompiling the version with DevTools yourself.