Migration from JupyterBook to Quarto #98

[edvinskis]

The guides have been ported to Quarto (#98). Here's a summary of the changes:

Removal of Jupyter Book-related files

• Removed files related to Jupyter Book, including deploy-jb.yml, _config.yml, _toc.yml, environment.yml, and requirements.txt.
• Removal of other obsolete files like build.sh and create_page_maintainers.py.

Addition of Quarto-specific files

• Created _quarto.yml with comprehensive website configuration, including project settings, website structure, and content organization.
• Added custom styling files: custom.css for navigation bar theming and theme-dark.scss for a dark theme based on cosmo (if we opt for that instead of solar).

Content updates

• Updated multiple Markdown files to use Quarto syntax.
• welcome.md now exists in index.md and acts as a landing page.

GitHub Actions

• Added new GitHub Actions workflows:
  • deploy.yml for rendering and publishing the Quarto site to GitHub Pages.
  • link_checker.yml and scheduled_link_checker.yml for checking links in the Quarto-based site.
• Removal of the older workflow files.

Miscellaneous updates

• Updated .gitignore with Quarto, macOS, and R-specific ignores.
• Modified .lycheeignore for link checking.
• Addressed issue #109.

TODO Before merge

• After review and before merging with master, in _quarto.yml lines 30-32 should be commented out and lines 35 and 36 should be deleted.
• Merge branch 98-port-backend-from-jupyterbook-to-quarto into master.

Current behavior

• For a current live version, you can visit https://edvinskis.github.io/TU-Delft-DCC.github.io/
• Multiple links are failing, but many do because the guides are currently hosted through my fork. I'll fix them right after the merge.

TODO After merge

• Fix broken links.
• Clean up branches in the repository.
• Review of existing unused files.
• Update Contributing guide.
• Update README.