Implement Profile Listings and Activity View

[Jharmony]

File: src/views/Profile/index.tsx
Expand user profile functionality by implementing profile listings alongside the existing activity view. Currently, index.tsx inside Profile/ includes assets, collections, and activity, but listings (items available for sale or trade) are missing.

• Determine if ProfileAssets already includes listings or if a separate ProfileListings.tsx component is needed.
• Fetch and display listings data (UCM or AOProfile API).
• Add a Listings tab to TABS in index.tsx.
• Ensure UI consistency with other profile sections.
• Confirm data source (AOProfile or UCM API) and update fetch logic if necessary.

References:

• [Profile Activity Design Spec](https://github.com/permaweb/ucm/blob/main/docs/profiles.md)
• [User Activity Tracking](https://arwiki.wiki/#/en/user-profiles)