[FEATURE REQUEST] Add other commonly used features

[jonjoncardoso]

Things I am now using on my pages and which have not been replicated on the template yet:

• Add a 404.qmd page
• Add the template of a syllabus.qmd (example)
• Add more generic path capture to project > render attribute. This avoids having to edit the quarto.yml all the time. For example:

  project:
    ...
    render:
      - "index.qmd"
      - "blog/*.qmd"
      - "blog/posts/*.qmd"
      - "404.qmd"
      - "2024/*/*.qmd"
      - "2024/*/**/*.qmd"