- Use `is-ipfs` library to validate IPFS CID in provided uri/url
- Handle IPFS URIs with folder/directory path structure
- Handle http urls (many contracts use direct gateway urls in their contracts). And convert them to provided gateway
- Use provided gateway on all required fields (previously metadata fetching was not using gateway)
- Add more default gateway options, as ipfs.io fails often, so it is easier to test/develop before getting dedicated gateway