Do not report `other` as missing for locales that use `few` and `many` instead

[erikaxel]

Pluralization rules are different between different languages. In English you have one and other as in

invoice:
    one: Invoice
    other: Invoices

Polish has one, few and many:

invoice:
    few: Faktury
    many: Faktur
    one: Faktura

The problem is that if I do this then i18n-tasks missing will complain that other is missing. But other is just the same as few. You can never get other if you have defined few and many. This causes a lot of duplication which makes the file bigger and maintenance harder.

It would be great if i18n-tasks missing did not report other as missing in this case.

[davidwessman]

I think we have had an issue like this open before, but it is hard to decide the pluralization keys per locale 🤔

[davidwessman]

#600
This issue has one suggested solution.

[erikaxel]

#600
This issue has one suggested solution.

Yes, I read that one before posting, and I think it is one interesting approach. Not 100% sure it would solve it as described in this issue, since it seems focused on filtering out the extra pluralizations such as few, zero, many, and it seems the rule that is complaining about other comes from some other place. This is just based on reading the errors, so not sure about that.

However, one could anyway use the approach in #600 to ignore few which would give a similar result, since i18n would then fallback to other for those cases. So I think could work, although I think it would be easier to understand few and many.