Hi Miro! Your enthusiasm is appreciated, but please do not do such huge unilateral changes as modifying `admin_level` without prior consultation with Croatian community. I'm going to revert this (as preliminary decided in Croatian telegram channel), and have opened a topic in https://community.openstreetmap.org/t/admin-level-u-hrvatskoj/120865 for further discussion.

Please feel free to explain there why you think `admin_level` should be changed in Croatia; and then we can proceed after the community consensus is reached. 

Thanks in advance!