JavaScript Structure Overhaul & Supabase Integration

I wrote my entire JavaScript front-end as one large file and it has become hard to maintain. I now need the codebase broken into clear, self-contained modules: Home, Market, Order, Purchase, Wallet and Profile... (Budget: $10 - $30 USD, Jobs: API Integration, Frontend Development, HTML, JavaScript, jQuery / Prototype, PHP, Supabase, Web Development)