Add partial translation to Croatian

[fbarl]

• Added Croatian to the list of languages and added a JSON template
• Translated most of the country names and about 15 extra terms

Screenshots

[systemcatch]

Hi @fbarl, thanks for the contribution. Can you get the map running locally and post some screenshots. I can build the map from your branch if this isn't possible.

[fbarl]

@systemcatch thanks for such a quick response!

I've added some screenshots to the PR description - I'm aware a lot of terms remain untranslated, but I didn't want this PR to grow too big, so I'd rather try translating the rest of it in subsequent PR(s).

[systemcatch]

Ok I built the branch myself to double check everything, it looks fine.

As you say the rest of the translation can be filled in future PR's.

[corradio]

Thanks! Can you also update mobileapp/www/index.html and mobileapp/generate-index.js ?
At some point it would make sense to unify all those.

[fbarl]

Can you also update mobileapp/www/index.html and mobileapp/generate-index.js?

Actually I added 'hr' to locales in both of those files in the first commit. Is there anything else I missed there?

At some point it would make sense to unify all those.

Yes, I noticed that - I just opened #1862 to address it separately.

[corradio]

My bad you were right ;-)

[fbarl]

Thank you for a thorough review @systemcatch @corradio! 👍