add missing station as webhook ID format

[ReuschelCGN]

https://github.com/WatWowMap/ReactMap/wiki/08.-Additional-Info#explanation

ID Format: https://www.yourMapUrl.com/id/:category/:id/:zoom
for Stations like this
https://www.yourMapUrl.com/id/station/{{station_id}}/18

[Mygod]

What's the use case for this actually? I've always found lat lon urls to be more reliable since they'll work even after the rows in the database are deleted.