Kanit (th), Noto Sans JP (ja) and Noto Sans KR (ko) were imported statically in main.tsx, so every visitor downloaded ~16MB of CJK font files. They're now loaded on demand once per locale (lib/cjkFonts.ts, wired in LanguageContext), so non-CJK users never fetch them and CJK users get their font after the first paint.
