refactored code to align with vocabulary markup

[Queen-codes]

Fixes

• Related to
• [Feature] Community Page refactor and redesign #858
• [Feature] Work Program page and refactor #859
• [Feature] Contribution page refactor and redesign #861 by @Queen-codes

Description

This PR refactors the code in page-with-toc.html to align with vocabulary markup.

Screenshots

Now(with old CSS commented out)

Checklist

• My pull request has a descriptive title (not a vague title like Update index.md).
• My pull request targets the default branch of the repository (main or master).
• My commit messages follow best practices.
• My code follows the established code style of the repository.
• I added or updated tests for the changes I made (if applicable).
• I added or updated documentation (if applicable).
• I tried running the project locally and verified that there are no
  visible errors.

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[TimidRobot]

This branch looks different for me than the description. Note section navigation (Contributing Code):

There should be support in Vocabulary to get the section navigation to look like https://creativecommons.org/mission/. Note section navigation (Who We Are):

[Queen-codes]

Hi @TimidRobot ,

I just checked, and yes, this branch matches your screenshot—likely due to the current local styles in the codebase. The screenshot in the description shows how it looks when using pure Vocabulary markup and styles, without the local styles applied. This is related to the efforts in #855.

I think the code markup in the section navigation seems to align with Vocabulary at the moment.

Let me know what you think!