When formatting the city's name, don't use the state if it's undefined

For example, Lisboa doesn't have a state so it's displayed as "Lisboa, undefined, Portugal".

Before/After

When searching for "Lisboa" using the API it returns both the city of Lisbon and the district.

{
            "geometry": {
                "coordinates": [
                    -9.1365919,
                    38.7077507
                ],
                "type": "Point"
            },
            "type": "Feature",
            "properties": {
                "osm_type": "N",
                "osm_id": 265958490,
                "country": "Portugal",
                "osm_key": "place",
                "city": "Lisbon",
                "countrycode": "PT",
                "osm_value": "city",
                "postcode": "1100-148",
                "name": "Lisbon",
                "county": "Lisbon",
                "type": "district"
            }
        },
        {
            "geometry": {
                "coordinates": [
                    -9.151827931741947,
                    38.7440523
                ],
                "type": "Point"
            },
            "type": "Feature",
            "properties": {
                "osm_type": "R",
                "osm_id": 5400890,
                "extent": [
                    -9.2298356,
                    38.7967584,
                    -9.0863328,
                    38.6913994
                ],
                "country": "Portugal",
                "osm_key": "place",
                "countrycode": "PT",
                "osm_value": "city",
                "name": "Lisbon",
                "county": "Lisbon",
                "type": "city"
            }
        },

If you would like to display both a separate entries, we could format it as "Lisboa, Portugal (city)" and "Lisboa, Portugal (disctrict)".

It would be more work as the type needs to be piped through and the type needs to be translated, but it might be more resilient to some edge cases I'm not aware of.

XavB64 / lowtrip

When formatting the city's name, don't use the state if it's undefined #80