Update Danish noun template

This mainly reflects [[Special:Diff/1827826976]] [1] by [[User:So9q]]
[2], though the form label was also wrong before then and I haven’t
tracked down why or when it was changed. (It’s possible it was always
right on-wiki and I just accidentally dropped the “ikke-ejefald” part
when transcribing.

[1]: https://www.wikidata.org/wiki/Special:Diff/1827826976
[2]: https://www.wikidata.org/wiki/User:So9q