some changes in the file _common.yaml for romanian language

[relust]

Am modificat un pic răspunsurile de la erors Am mai adăugat câteva completări la expansion_rules

I modified the answers from errors a bit Added some more additions to expansion_rules

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[tetele]

@relust te rog fa merge la branch-ul main inainte de a trimite un nou commit catre review. Sunt cateva chestii outdated.