🚀 Enhancement: Allow custom message on upload error

[tech-magnety-ai]

Hello, 👋

I noticed that this PR is stalled. So I make another one 😅

Allow custom error message to be returned from upload error object and be displayed in notice when success === 0 in the following form:

{
     "success": "0",
     "message": "My custom message"
}

[tech-magnety-ai]

Oops, Prettier formatted the code. I'll fix this.

[panieldark]

Would be very grateful if this was added 🙏