Network param for getSpaceUri function

[mktcode]

Fixed #401

Adds support for different ens resolver addresses per network. Defaults to main net.

The frontend can then be updated like this:

const uri = await getSpaceUri(
  props.spaceId,
  import.meta.env.VITE_DEFAULT_NETWORK
);

This would allow to use ENS names registered e.g on rinkeby for testing.

[bonustrack]

How this will be used? For testing right with local snapshot and hub?

[mktcode]

@bonustrack Exactly. I still don't have a main net ENS domain.

This update would not break anything as far as I can tell. I could adjust the frontend later.

[ChaituVR]

LGTM