Norwegian stopwords contain errors

[omega]

I was looking at Sonic, and noticed there was a recent merge of Norwegian stopwords (which is great), but looking at #236 I couldn't help notice some of the words seem to have either wrong or weird encoding, resulting in words that are not Norwegian stopwords. The list seems to originate from the stopwords-iso project, so perhaps this would be better to raise there as well.

    "forsûke",
    "fûr",
    "fûrst",
    "gjûre", 
    "vöre",
    "vört",

The list also contains some words that I don't think should be stopwords (tilstand is one such word).

I am no licensing expert, but by a quick glance, the Norwegian stopwords from nltk (python project) seems to be a slightly smaller, but better, stopwords list for Norwegian. I am not sure if it's ok to just copy theirs though.

So to sum up, would it be best to open a PR fixing the words that are wrong in the list here, or better to open a PR using the stopwords listed in nltk?

[valeriansaliou]

Hello there! Thanks for that report. You may open a PR there 👍