Non-Sidebar Pages not Rendering

[s2t2]

Currently, pages that are linked to, but not included in the left sidebar navigation, are rendering as raw markdown.

• prereqs/local-dev-setup/terminal-config.qmd
• prereqs/local-dev-setup/vs-code-config.qmd
• exercises/run-the-app/troubleshooting.qmd
• notes/clis/brew.qmd

https://github.com/quarto-dev/quarto-cli/discussions/7312#discussioncomment-7345228

Need to fix this.