[EVM][SDK] Generates images not supported in block explorer

[bitbeckers]

Which area(s) of Hypercerts are affected? (leave empty if unsure)

SDK, Frontend Dapp, Other

To Reproduce

Describe the Bug

Images generated via uploading are not consistently parsable by other frontends. Both block explorer and OpenSea have shown issues. All images load on the FE.

Expected Behavior

Images should render in block explorer, opensea and the hc frontend