[FEATURE] Centralizing error codes #29
Description
iOS error codes: https://github.com/onflow/FRW-iOS/blob/7328759d8cd9b1c6a9bc258f0d6af0172226ca3d/FRW/Foundation/Model/Error.swift#L12-L187
Android error codes (Cadence) https://github.com/onflow/flow-kmm/pull/9/files#diff-668a231ea8c23dccfd913d912445d4cc2a3e9cc304eaa84e1dc2af14699e7e58:~:text=package%20org.onflow.flow.infrastructure
Look into centralizing error codes as part of flow-kmm or FWK SDK.