Hello,
I've uploaded all the json files to the world.json repo [1]. Note,
I've added the missing world.db folder structure and filename
conventions e.g. at.json becomes europe/at-austria.json, br.json
becomes south-america/br-brazil.json and so on.
You're welcome / invited to keep the json files up-to-date. Cheers.
[1]
github.com/openmundi/world.json
PS: To keep the files up-to-date it's best to add the missing
information to the world.db datsets itself and than auto-generate
these json files from the world.db.