Updated NL translations for 4.18

[Debian bug 1115411](https://bugs.debian.org/1115411) was filed with updated Dutch translations. Please apply them.

Attaching the file here for your convenience:

[nl.po.gz](https://github.com/user-attachments/files/22372656/nl.po.gz)