Map: add indoor=* tiles

[zbycz]

DEMO: https://osmapp-git-indoor-osm-app-team.vercel.app/

Proof of concept for Indoor tiles 🎉 - aka #225

Thanks contrapunctus for heads up about indoorequal service. And @francois2metz for creating it ofc! 😃👍

More links:

• https://github.com/indoorequal/maplibre-gl-indoorequal
• https://indoorequal.org/#map=18.28/50.083387/14.433989&level=-3
• https://status.indoorequal.org/

TODO

• attribution
• indoor disappears when switching layers
• make indoor default (how?) 🤔
• tilting: When I tried to tilt the map (via 2 finger swipe), I managed to break the indoor rendering. Rooms and corridors were no longer rendered, even though the Indoor layer was active. Once I turned the layer off and on again, the rooms and corridors were displayed once more, and tilting the map now tilted the indoor data too - pretty cool! I can reproduce this consistently in Fennec F-Droid 129.0.2 (Android) and Firefox 131 (desktop). I've attached the console output from the latter.
• the Louvre https://osmapp-git-indoor-osm-app-team.vercel.app/#18.45/48.8610/2.3389 Here, OsmAPP's level selector doesn't do too well on phones - it goes off-screen at the bottom. Could users scroll the level selector up and down? IndoorEqual does this on desktop, but on phones the pull-down motion conflicts with the pull-to-refresh gesture.
• maybe: consider if we can stack the floor to their relative height! Speaking of tilting - currently, all indoor data is currently shown as if it was on the ground floor of the building. Would it be very difficult to show the data higher/lower, based on the value of level=* + the building height? (Building heights are not commonly tagged in OSM, so renderers usually assume a height of 3 meters per building level.)

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[francois2metz]

Hi,
Great integration!
I would recommend to switch to the package maplibre-gl-indoorequal, I forgot to update some documentation.

Not sure what are you plan, but you may want to hide the heatmap.