Add various carto basemaps as options

[kylebarron]

Change list

• Add basemap_style attribute
• Add enum with carto styles (closes Dark Themed Maps #265)
• Change tsconfig to use nodenext module resolution
• Explore bundle splitting to load maplibre-gl separately, but didn't work out of the box 😕 Ref https://visgl.github.io/react-map-gl/docs/api-reference/map#maplib