- convert Source Serif Pro and Source Sans Pro to woff2 (lossless,
~500 KB -> ~155 KB) and only declare the woff2 format, which is
supported by all current browsers
- only preload the body and menu fonts: JetBrains Mono is only used by
code blocks. Previously, five fonts were preloaded (~800 KB), including
JetBrains Mono in three formats.
- remove the unused material-icons fonts (icons are inline SVG)
Refs #11
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01YNHsWYTXPThURz6TbVS1j3