Opening this PR so we only iterate on the TOC structure once.

TODOs blocking merge:

• restructure TOC based on the google docs we have
• enable execution in JB2
  • conditional skips of notebooks (depending on OS, CI, etc.)
  • install python dependencies
    • create a universal make file to make sure we use the same in all CI (and then easily reproduce locally) -- added to tox for now
  • review rendered pages, collect and report missing features upstream
    • scrolling for outputs
    • add launch button
    • Move author and date metadata into notebook header -- needs some experimenting as not sure how it will look like in jupyterlab

jira: IRSA-7092

resolves #98 closes #123 resolves #124 resolves #140

Checklist from review:

• Spitzer doesn't need "Spitzer Enhanced Imaging Products" with just one notebook, as in, we can remove the second layer under Spitzer and just have a single notebook for Spitzer.
• In the upper right are a few symbols that don't work, can we either make them work, or remove them until they do work?
  • jupyterlab -- **my understanding that the unclickable logo just shows if it's a notebook, but I'll be enabling the binder launch in the next follow-up, that may resolve this one issue, too, and if not I'll open an issue upstream
  • edit link -- This is a known bug (BUG: wrong link in github edit link jupyter-book/mystmd#2234); TL;DR: we do tunnel through a proxy for the preview and use forks for PRs and that is just not supported. In the deployed version I expect the button to work (it does for fornax docs); though it doesn't work for The Turing Way. So we'll see once we merge this.
• Interesting find; the reason was to have text before the top level heading. I moved it around and now it's just one title WISE: NEOWISE: "Make light curves from ..." and "Strategies to Efficiently..." have two titles in the rendered versions.
• I don't think so. I think we need a better landing page, but having another TOC doesn't make much sense to me Does it make sense to list the notebooks on the main index page, like we do for Fornax?
• Comments in ignore_*_testing files about why each notebook is excluded would be really helpful.
• IMO, the heading titles in the notebook you linked below, as well as in a handful others should be reworked, but now one fewer heading layer is included The notebook TOCs on the right: The Fornax ones only show h1 and h2 until you scroll to a section that has lower-level headings and then that section in the TOC expands to show them. On these IRSA ones, all heading levels are shown. Is that an easy setting to change? Personally, I like the Fornax behavior better.
• Reported issue upstream: BUG: scrolling a hover pop-up scrolls the entire page along with the pop-up jupyter-book/mystmd#2231 (comment) -- This notebook’s TOC is so long that I can’t even scroll to the bottom of it. It cuts off at some point and I can’t see the last few sections. Seems like a bug in the rendering, but changing to Fornax style (above) should also fix it. https://circle.scientific-python.dev/output/job/ad753bcf-9ff8-48ca-a683-6c9888e57bfb/artifacts/0/_build/html/openuniverse2024preview-firefly
• expected issue, we should port Jaladh's fix to the new theme, too: Add scroll_outputs configuration executablebooks/MyST-NB#683 Some of the cell output is really long and not very informative. Is there a way to limit output cell height and make them scrollable? I think we’ve talked about this before but I don’t remember the answer.