Code highlighting does not support html

[cokice]

Describe the bug

代码高亮不支持html

Reproduction

代码高亮不支持html

System Info

代码高亮不支持html

Used Package Manager

npm

Validations

• [X] Follow our Code of Conduct
• [X] Read the Contributing Guide.
• [X] Check that there isn't already an issue that reports the same bug to avoid creating a duplicate.
• [X] Check that this is a concrete bug. For Q&A, please open a GitHub Discussion instead.
• [X] The provided reproduction is a minimal reproducible of the bug.

[yzh990918]

Currently it should not support GPT to reply directly to HTML code similar to this：

However, if the content of the GPT reply conforms to the Markdown specification, the HTML can be rendered normally：

[yzh990918]

It doesn't match Markdown's plain HTML answer, and the official doesn't seem to have handled it.

[ddiu8081]

Might be fixed by #141