[Hestia] Add filter for country when listing cities

[MinaDoncheva]

The dropdown list of cities should be filtered based on the chosen country.

[MinaDoncheva]

fixed with:

• https://github.com/codbex/codbex-partners/pull/18
• https://github.com/codbex/codbex-companies/pull/7
• https://github.com/codbex/codbex-inventory/pull/24