[MAP] Extract location data using the Google Maps API from each marker

[shayantist]

Given the latitude and longitude of a marker (under _geoloc), use the Python Google Maps API to extract the info for the following attributes:

• loc.description_clean (from formatted_address in the Google Maps Geocoding API)
• loc.country (refer to @tzou2024's code here)
• loc.city (refer to @tzou2024's code here)