New field 'Country subdivision' in the company tab

To provide a more precise geographic specification for the TfS standard, the Company tab has been extended with the "Country subdivision" field.

What's new:

• The field appears in the Company tab next to the "Country" field.
• Once a country is selected, the dropdown displays only the regions valid for that country, output as an ISO 3166-2 code.
• As long as no country is selected, the field remains disabled.
• When the country is changed, the selection is reset automatically.

The field is optional but should be filled in if you want to report according to TfS.