Feat: Support for IP Geolocation via ipinfo.io, alongside IP2Location.

**Is your feature request related to a problem? Please describe.**
No

**Describe the solution you'd like**
Currently, SmartyURL supports checking the country of IP addresses using the embedded IP2Location database.

**Describe alternatives you've considered**
This feature proposes adding optional support for [ipinfo.io](https://ipinfo.io/) as an alternative geolocation provider. A new setting can be introduced in the admin panel allowing administrators to choose which service to use for IP geolocation:
• Use the local IP2Location database bundled with the application (default).
• Use the ipinfo.io API for real-time IP geolocation.

This would provide greater flexibility for system administrators, enabling them to select the most suitable data source depending on their accuracy needs, performance considerations, or licensing preferences.