Update Mapbox and OSM tile layers
Update Mapbox and OSM tile layers

The Mapbox, openstreetmap.de and Geofabrik tile layers no longer
work. Updating them to working alternatives.
In particular, for Mapbox I followed the migration guide:
https://docs.mapbox.com/help/troubleshooting/migrate-legacy-static-tiles-api/

yuryleb/osrm-frontend,Project-OSRM/osrm-frontend-v2,yuryleb/osrm-frontend,Project-OSRM/osrm-frontend,Project-OSRM/osrm-frontend,Project-OSRM/osrm-frontend,Project-OSRM/osrm-frontend-v2,yuryleb/osrm-frontend