Wrong pagination link for facet page on world in another language

[hangy]

What

Pagination link is broken for non-default language.

Steps to reproduce the behavior

1.Open a list of brands on OFF in non-default language, ie. World in German, ie. https://world-de.openfoodfacts.org/brands
2. Click on the page number 2
4. See error, because https://world-de.openfoodfacts.org/marken/brands/2 was opened

Expected behavior

The href should have pointed to https://world-de.openfoodfacts.org/brands/2 or https://world-de.openfoodfacts.org/marken/2

Why

It's currently not possible to browse a country's facets in another language, which could hinder some contributors.

[hangy]

After some research, I think this could be a duplicate of #3850. It wasn't obvious from the get-go, because it doesn't actually seem to be a language issue, but a general issue with the face pagination.

[alexgarel]

seems plausible that it's a duplicate of #3850 as the problem there is on facets that are not real tags.

[alexgarel]

It's because we use groupby_tagtype in display_pagination. We should add a parameter in the request to give the right name.

[alexgarel]

I will propose a PR