Update Karenderia Location-Based Service Search Addon – Multi-Country Support

The addon already includes a country list, and the Admin can manually add States/Provinces, Cities, and Districts/Areas under each country.

However, the current Location-Based Service Search works with only one selected Location Country, and customers cannot choose the country from the search interface.

Requested Update:
Add Country as the first search level:

Country → State/Province → City → District/Area

The Admin should be able to enable multiple countries, and after the customer selects a country, only the related States, Cities, and Areas should appear.

Example:
Australia → South Australia → Adelaide → Saint Clair

Goal:
Make the addon support a true Multi-Country Location-Based Search instead of being limited to one country.