I need a community marketplace in Svelte5. The can access the landing page, but to see listings he/her needs to register first and then be approved by a moderator. All listings shall be generated by the registered users. Each listing can have a photo, price, description, etc. Bidding is done by commenting on a listing. Sold listings should be marked as sold. All listings should be categorised and the menu should also have all categories with child categories underneath

I'll create a comprehensive community marketplace for you! This will include a public landing page, user registration with moderator approval, categorized listings with bidding through comments, and a complete admin system. The marketplace will have a modern design with proper navigation, search functionality, and user management.