blockworks-foundation/mango-v4-ui ? reverse-engineered prompt

Build me the Mango V4 user interface as a polished Next.js web app.

I want a clean, modern crypto trading style dashboard that feels fast and easy to use, with reusable components, shared hooks, and a nice settings area for display options like themes and language. Make it responsive so it works well on desktop and smaller screens, and keep the styling consistent across the app with a few well organized color themes. If there are any parts that depend on current library behavior or best practices, please look up the latest docs online if you need to.

Please keep the app organized and production ready, with sensible loading and error states, and make sure the pages, components, and shared utilities feel like they belong to the same product. I’d also like the UI to be ready for translation, so the text should be easy to manage in different locales.