Tracking: maplibre-gl pinned to ^5.0.0 until Leaflet plugin supports v6

[mizmay]

Unrelated to v6 dropping the UMD bundle (why @latest broke see #62, #60, #61), index.html pins maplibre-gl to @^5.0.0 because @maplibre/maplibre-gl-leaflet (the Leaflet adapter this site uses) doesn't yet declare peer support for maplibre-gl v6.

Upstream tracking issue: maplibre/maplibre-gl-leaflet#93

Nothing to do here until that's ^^ resolved upstream. Leaving this open as the pointer so the ^5.0.0 range doesn't look like an arbitrary or stale pin next time someone's in this file.

[birkskyum]

@maplibre/maplibre-gl-leaflet v0.1.4 has been released with support for MapLibre GL JS v6 (as well as 3, 4, 5) - it should be possible for bboxfinder.com to proceed now