filter prices for locations within n meters, after providing latitude/longitude

[teolemon]

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Problem

By @monsieurtanuki

Proposed solution

@teolemon Not really from the PoC, but it would be wonderful if we could filter prices for locations within n meters, after providing latitude/longitude:

• we could know the prices in shops that are close enough to me (instead of remote cheaper / more expensive locations)
• we could imagine a crazy feature like "this is my shopping cart: tell me which shop in the neighborhood is the cheapest"
• without the lat/lon/meter filter, providing a list of locations (instead of a single) - give me the prices for "my favorite locations"

Besides, the most annoying part is finding the location. Not convinced so far by what I implemented in the PoC or what is implemented in prices. Still looking for a "get the shops that match 'monoprix avenue daumesnil paris'" easy method.

Additional context

Originally posted by @monsieurtanuki in https://github.com/openfoodfacts/smooth-app/issues/5072#issuecomment-1949126838

Mockups

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