Simplify translation of terms

[UnniKohonen]

This PR simplifies translation of suggested terms by using the language parameter of Annif API's suggest method. Calls to Finto API are removed.

Implements #10

[osma]

Looks very good - we will get rid of a lot of code - and seems to work well.

I'm not sure what is the best merging strategy here (should we merge directly to main or to some other branch? @juhoinkinen ?) but once we figure that out, this can go in.

[juhoinkinen]

Hmm, I think it's best to merge to update-2022, because that branch is deployed for ai.dev.finto.fi , and main branch for ai.finto.fi.

[osma]

I changed the base branch, but now we have many more commits in this PR. I think there should be a merge from main to update-2022 first that would take care of the commits that are not yet in update-2022.

[juhoinkinen]

I changed the base branch, but now we have many more commits in this PR. I think there should be a merge from main to update-2022 first that would take care of the commits that are not yet in update-2022.

Ok, I'll merge on my laptop and push.

[juhoinkinen]

To make "the extra commits" disappear from thia PR, I also had to switch the base branch to main (any other branch could have done) and back to update-2022. This was suggested in StackOverflow.

[osma]

Can be merged now IMHO

[osma]

🎉