Update create-next-app's Tailwind project generation so projects using Turbopack use `@tailwindcss/turbopack` through a Turbopack CSS loader rule instead of the PostCSS integration. Turbopack-generated Tailwind projects must omit `postcss.config.mjs` and `@tailwindcss/postcss`, include `@tailwindcss/turbopack` and `tailwindcss`, and compile and render the template's Tailwind styles in production. Projects generated for non-Turbopack bundlers must continue to use `@tailwindcss/postcss` and `postcss.config.mjs`.