Better map tiles for aviation
# Description
To allow to support maps while being offline, in https://gitlab.com/whitebox-aero/whitebox/-/merge_requests/150 we added a [tile server](https://github.com/maptiler/tileserver-gl), serving tiles generated from [geofabrik](https://download.geofabrik.de/) with [tilemaker](https://github.com/systemed/tilemaker).
The tiles do the job for the current alpha versions, but it would be good to improve the rendering of the tiles.
# Scope
Allow pilots to better visualize the topology and terrain visually:
- Use colors, a bit like the rendering from https://www.openstreetmap.org/#map=10/41.4263/1.3225&layers=P
- Put less emphasis on the roads, which are useful visual landmarks but much less important
- Highlight the airports and aerodromes, their names, altitudes, runways, etc (as available)
# MRs
- https://gitlab.com/whitebox-aero/whitebox/-/merge_requests/195
issue