[Feature]: Weihnachtsbäume (Christmas trees) as an option

[rudibarani]

I propose a feature for:

The integration in general

Describe your wanted feature

Some waste collectors, like the one in Wolfenbüttel (https://www.alw-wf.de/index.php/abfallkalender) also collects christmas trees in January. Would be nice to have this option in the waste calender, too.

[5ila5]

Looks like the alw_wf_de source uses an old API, but it seems to still work. It does not make any difference between waste types and should list Christmas tree collection like any other waste type (Christmas tree collection do not show up in the result, but it only gets dates until December 2024 at the moment, so there shouldn't be any) but I'm sure they will show up later this year or at the beginning of the next