[FEATURE] Improve Marketplace(Add local cities, Add marketplace tab on profiles)

[ghost]

Is your feature request related to a problem? Please describe.
I see many nostr users selling things on the marketplace but there is no way to search sellers locally.
I am also unable to see if nostr users have things for sale by looking on their profiles tabs.
If they make a marketplace post it goes into their feeds but eventually gets lost as they make other posts.
There is no marketplace tab on profiles. Their should be.

Describe the solution you'd like
I'd like to be able to filter the marketplace by country, state & city and see users marketplace on their profiles.

Additional context
Here is some pictures of my suggestion