Search: Include `zoom` value for more relevant results

[JakobMiksch]

ThePhoton GeoCoder can use a "location bias" to make the results more relevant. See: http://localhost:2322/api?q=berlin&lon=10&lat=52&zoom=12 Currently we only use lat/lon to higher rank places close it.

Photon would allow to provide a "zoom" value, but we have not implemented that yet. Unfortunately, the geocoder plugin does not natively provide a zoom value, once the use starts searching. See here:

type MaplibreGeocoderApiConfig = {
    bbox?: number[];
    countries?: string;
    language?: string;
    limit?: number;
    proximity?: number[];
    query?: string | number[];
    reverseMode?: "distance" | "score";
    types?: string;
}

related:

• Photon geocoder #52
• Suchfunktion von Orten durch Texteingabe #1