Show dock locations on a map

[tmcw]

Hovering over a dock info panel might show a map, or maybe there's a tiny "overview" map that indicates where docks are on the website. There isn't currently a geospatial component to this site, but there probably should be one.

It'd be nice if this was relatively self-contained and not reliant on building a whole geospatial stack into the thing. So possibly something like PMTiles or a static maps api, might be a good solution.