feat: address autocomplete dialog

[barredterra]

address_autocomplete.mov

Providers:

• Geoapify,
• Nomatim,
• HERE?

Todo:

• add something like a spinner to show active search
• add a "No results" message
• handle edge cases (i.e. click buttons with no result selected)
• add documentation
  Note: Nomatim must be self-hosted. Using the public service for autocompletion is not allowed.

[batonac]

Hey @barredterra, nice work here! I've done some work with geolocation integrations in my Customer Information System Enhancements for ERPNext app. I appreciate the concept of pushing more geolocation integrations upstream, and would be glad to pitch in if possible.

In thinking along these lines, perhaps it would be fitting to name your new settings Doctype "Geolocation Settings" instead of "Address Autocomplete Settings", with the goal of integrating providers for address geocoding as well as autocomplete.

[barredterra]

@batonac since Geoapify also offers these other Geolocation features, which could be easily added to our integration, I think your proposal makes sense. I'm not sure about other providers. Maybe at some point it will make more sense to have one settings page per provider.

[DrZoidberg09]

Nice to see this in Frappe Framework. I have both features running in a private app using HERE Map services. Happy to contribute, if you are interested.