13c9bb20

By: ValentinHirschi <valentin.hirschi@gmail.com>

bundle readable math typography in notebook HTML

Embed the shared STIX Two Math webfont in Spenso MathML output, with a
21px base size, padding, scrolling, and a CSS size override. Cache font
encoding and keep a single asset shared with the documentation builder.

Validation: 17 targeted nextest tests, Cargo check, Clippy with warnings
denied, formatting, guide compilation, and 55 documentation scope hashes.
Chromium verified the actual webfont, script sizing, narrow-output scrolling,
and light/dark rendering. Marimo Html preserves the embedded font.

User prompt:
the font looks really strange and not so readable. Is this mathml? anyrthing to be done about it?

Approved proposal: use the bundled STIX Two Math font, a 20–22 px base size,
and padding for selectable notebook MathML, including standalone Marimo.

User prompt:
Go for it

Timeline