Implement fuzzy geocoding search

[haphut]

The user might make typos when searching for a destination. Implement error-correcting geocoding search so some typos would not matter.

[haphut]

Unfortunately Digitransit has a blocking issue: Improve fuzzy searches in geocoding. The fuzzy search endpoint gives too many erroneous results to be useful. Also the focus point seems to be ignored so geocoding results from far away get higher priority than local results.

Once the API is fixed, use the commit gatesolve/react-autosuggest-geocoder@0b9a943 .

[tuukka]

Deploy preview available at #169