i18n: Enabled Croatian translation

[stefanb]

Translation: https://hosted.weblate.org/projects/sledilnik/zdravniki/hr/

Needs finishing and review.

Preview: https://pr-446.zdravniki.sledilnik.org/hr/

cc @vekejsn

Related:

• 193

• 208

[vekejsn]

There is full stop after year. Otherwise looks good

The dot is placed there according to the datetime locale, and is ok to be there.

[stefanb]

We have the dot also on https://covid-19.sledilnik.org/hr/stats :

[stefanb]

We have plural forms enabled from before:

...but apparently something isn't working

specifically in this case:

See https://github.com/search?q=repo%3Asledilnik%2Fzdravniki%20totalresults&type=code

[stefanb]

Seems better after b2c90584da48b9c77464bf376f4a40c358d8855d: