We fetch the eligibility data from the backend for the area the user
is currently viewing.
We don't want to trigger the search when the user is zoomed out, it
could be heavy on the backend CPU. Hence, we trigger the fetch after
the user searched for his real address or reached a good-enough zoom level.
The backend is currently returning a dummy answer.
Adding an interactive map with a geocoding search bar. We use leaflet
with the openstreetmap.fr tiles. As for the geocoding part, we use
komoot's photon API for the time being.
