[x] Selectively include (exclude?) python blocks from plugin (0.0.2)
[ ] Ability to style elements
[ ] Load button
[ ] Run button
[ ] Output area
[ ] codemirror color theme
[ ] Responsive dark/light theme w/ mkdocs-material?
[ ] Add preamble/post-amble Python code to be added visibly when code block loads
[x] Add pre/post code that runs *invisibly* before/after block runs (Python) (0.1.0)
[ ] Add the ability to re-use pre/cost code on multiple blocks
[ ] Add way to specify dependencies per-block
[ ] Move builds to GitHub Actions