next.js

31203283 - Update create-next-app template CSS (#66233)

Update create-next-app template CSS (#66233) Updates `create-next-app` template CSS: - Declares variable font weights in `localFont` options and removes instances of `font-synthesis: none` - Removes Geist font variables from Tailwind config files - Adds fallback sans typefaces to the `body` CSS Co-authored-by: Sam Ko <sam@vercel.com>