fix(website): hide body scrollbar, fixes #908

[pnodet]

Delivery Quality Checklist

• [ ] Breaking Changes in API: Does this PR introduce breaking changes in the API?

  • If yes, have you considered making it backward compatible?
  • If backward compatibility is not considered, set the "breaking-change" label.

• [ ] Changelog:

  • [ ] For bugfix PR, set the "bugfix" label
  • [ ] If this change should not appear in changelog, use "ignore-for-changelog" label

• [ ] Version Update Handling: Have you ensured that the version update by user is handled correctly?

• [ ] PR Dependency: Does this PR depend on another PR?

  • If yes, is it necessary for the dependency to be released prior to merging this one?

• [ ] Documentation:

  • [ ] Are any necessary changes made to user-facing documentation?
  • [x] Confirm that API documentation is updated with any relevant changes.
  • [x] Check that README and other documentation files are accurate and current.

[Thykof]

Hi @pnodet, thanks for the PR! This issue was already addressed with an internal fix we didn't mark publicly—our bad. Your frontend contributions are valued, and we'll definitely ping you for future collaboration on similar matters. 👍