Furo

- ✨ Add support for Sphinx 6.
- ✨ Improve footnote presentation with docutils 0.18+.
- Drop support for Sphinx 4.
- Improve documentation about what the edit button does.
- Improve handling of empty-flexboxes for better print experience on Chrome.
- Improve styling for inline signatures.
- Replace the `meta` generator tag with a comment.
- Tweak labels with icons to prevent users selecting icons as text on touch.

- Add ability to set arbitrary URLs for edit button.
- Add support for aligning text in MyST-parser generated tables.

- Add a minimum version constraint on pygments.
- Add an explicit dependency on `sass`.
- Change right sidebar title from "Contents" to "On this page".
- Correctly position sidebars on small screens.
- Correctly select only Furo's own `svg` in related pages `nav`.
- Make numpy-style documentation headers consistent.
- Retitle the reference section.
- Update npm dependencies.

- Fix `docutils <= 0.17.x` compatibility.
- Bump to the latest Node.js LTS.

- Fix the URL used in the "Edit this page" for Read the Docs builds.

- ✨ Advertise Sphinx 5 compatibility.
- ✨ Change to `basic-ng` as the base theme (from {pypi}`sphinx-basic-ng`).
- Document site-wide announcement banners.
- Drop the pin on pygments.
- Improve edit button, using `basic-ng`'s `edit-this-page` component.
- Tweak headings to better match what users expect.
- Tweak how Sphinx's default HTML is rendered, using docutils post-transforms (this replaces parsing+modifying it with BeautifulSoup).
- When built with docutils 0.18, footnotes are rendered differently and stylised differently in Furo.