Runeicons/runeicons ? reverse-engineered prompt

Build me a polished website for an open source icon library called Rune Icons.

It should let people browse 900 plus icons, search and filter them by name, category, or tag, and switch between five styles for each icon, outline, duotone, fill, pixelated, and glass. Each icon page or preview should let users copy the icon as SVG or JSX, and there should be a simple built in editor where someone can tweak the paths in the browser before copying it out.

Make it feel modern and fast, with a clean landing page, smooth browsing, and a strong focus on the icons themselves. I’d like it to be built as a production ready Next.js site with a nice UI, responsive layout, and good attention to detail. If you need to check anything, look up the current docs online first.