also support OSM id short url

[robstoll]

Is your feature request related to a problem? Please describe.
I tried to navigate to
https://water-fountains.org/node%2F1945035111

because it works for wikimedia ids
https://water-fountains.org/Q27229902

Describe the solution you'd like
Support also https://water-fountains.org/node%2F1945035111

Describe alternatives you've considered
https://water-fountains.org/?i=node%2F2021508408

Does not work either as city must be defined currently

Additional context
Add any other context or screenshots about the feature request here.

[robstoll]

My bad, short OSM is already supported, just without the node%2F prefix, so for instance https://water-fountains.org/1945035111 already works