Textformatting does not work on Routes Popups with style "Routes"

[Example Map](https://umap.openstreetmap.fr/de/map/umap-bugs_1351634)
See Layer "Routes" -> Item "Brülisau -> Hoher Kasten"

1. Create a route
2. set a description
3. Popup displays description nicely formatted
4. go to interaction options
5. set popup style to "route"
6. Popup now displays description as raw text
