Next.js 3.0

Introduced static export support via `next export` command, enabling deployment of plain HTML/CSS files. Added full support for TC39 dynamic import, allowing code splitting into dynamically loaded chunks. Introduced `next/dynamic` for dynamically loaded React components that still support server-rendering. Enhanced error display with a new color theme and improved Hot Module Replacement (HMR) to handle various error scenarios, including navigation to error pages, bad return types, and runtime errors. Achieved a 5x faster bootup time for baseline Next.js apps (down to ~200ms) and made core Next.js bundles 10% leaner.