5.0.0

Breaking Changes

• Removes ipfs-http-client: resolves build issues when running in nextjs

• Now using cross-fetch instead of directly injecting node-fetch as a polyfill solution for fetch
  22293a2

• Changes getLatestBlockhash() on the LitNodeClient to be an async method. This was previously a synchronous call.
  83a070b

Bug Fixes

• Fixesnode-fetch not found exceptions in NextJs

• Fix to global polyfill of Buffer causing errors:
  618fbf8

• Addition of static eth wallet auth method in lit auth client
  05d9494

• Fix to ILitNodeClient interface compatibility
  8efcb0f