Provide a default service for Open Street Maps (OSM)

How do you think OSM is loaded? The Leaflet module is already supported. We have to interrupt the integration, so we need information about the integration

And which URLs should we integrate? Many countries have their own URLs that can be integrated via iframe, for example. See also this list: https://wiki.openstreetmap.org/wiki/Using_OpenStreetMap#Maps

We use https://umap.openstreetmap.de/de/ to integrate very simple maps with just a few custom markers. So the leaflet module is usually overkill.

Thanks for the reply @jan kellermann - I mostly opened this issue as note to myself to check this more in depth (asap - but very busy still).

So anyone feel free to propose changes here or wait for me :)