Well, I have translated this beautiful forum into my language, too.
Just use the command
composer require bmain/flarum-ext-romanian
and you will have it into your administration area.
I still have to do some minor changes here an there, while I test it and as I see discrepancies or misspellings. Let me know, if you find any. The git repo is https://github.com/bmalex88/flarum-ext-romanian