2f012c6cfb
Align the data-mesher docs visual identity with docs.clan.lol by overriding the Material theme's colour palette, typography, and component styling. When the new docs framework in clan-core becomes portable we can switch to that. - Switch from Roboto/Fira Code to Mona Sans with system monospace fallback for code - Override light and dark mode palettes to match clan-site's colour scheme (oklch values converted to hex for dark mode) - Style admonitions with clan-site's pastel backgrounds and 4px left border in both light and dark modes - Add white/dark content area with border-radius and border to distinguish from page chrome - Update homepage hero button and heading styles - Fix docs.nix source path (was resolving to nix/ instead of repo root)