Switch from mapbox to maplibre for historical-sat #20
Description
Pros of switching from mapbox to maplibre:
- Avoid the need for a mapbox api key, unless you want to display mapbox satellite raster tiles and styles (streets etc) and geocoder
- COG raster tile source via geomatico/maplibre-cog-protocol
- smooth fade-in on setTiles described in Fix flicker of historical imagery #44 see maplibre PR Fix: raster-fade-duration is ignored (issue #5038) maplibre/maplibre-gl-js#6053
- others? other geocoder, other protocols, etc