Add element-plus to make it look good.

New Function：

1. You can modify more params .
2. You can find the params' link.
3. Loading mock had been added.
4. You can save and download the result with prompt.

If you look a blank website when you use simple page, you can change js resource to unpkg or jsdelivr.

You can download chatgpt-web.html to use, it's a simple page.