fix: code block in tight list

[inomata137]

Fixed a bug where code blocks inside list items are displayed in wrong positions.

minimal reproduction is:

- one
  two
  ```
  three
  ```

before:

after:

[RivoLink]

Hi @inomata137
Thanks for your interest in the project and for your PR, I really appreciate it.

A couple of requests:

• The commit message is too verbose. Could you replace it with fix: tight list code-block? You can add a commit description if you want to provide more context. Also, please remove Claude as a co-author.
• Signed commit: GPG signing is required on main. If you can sign it, great. If not, no worries, I'll handle it and preserve you as author.

GPG signing docs : https://docs.github.com/en/authentication/managing-commit-signature-verification/signing-commits

[inomata137]

Sorry for force-pushing many times, but finally I managed to sign my commit using GPG :)

[RivoLink]

No worries, thank you so much 😊