ahtashamfarooq193-pixel/Nyxra-Ai ? reverse-engineered prompt

Build me a clean Flutter app that feels like an AI chat assistant, something simple and polished that works on mobile and web.

I want a chat style home screen where users can type a message, see replies in a conversation thread, and easily start a new chat. Make it look modern and friendly, with a nice empty state, loading state, and basic settings area for things like theme and clearing chat history. Use the existing Flutter project setup and connect it to the Firebase files already in the repo if that makes sense, and keep the code organized so it would be easy to grow later.

If you need to check anything current in the Flutter or Firebase docs, feel free to look it up online. Focus on getting a usable first version working end to end, with sensible defaults and a smooth experience.