feat: updating setup script to use orbit sdk

[GreatSoshiant]

Closes: INT-136

[TucksonDev]

I think l3Provider includes the RPC URL in the object, can you verify? In that case we wouldn't need the last parameter.

[GreatSoshiant]

No JsonRpcProvider doesn't have any method to get rpc url which is weird haha
https://docs.ethers.org/v5/api/providers/jsonrpc-provider/

[TucksonDev]

I think you can get it from l3Provider.connection.url. Just did a quick test, but verify on your end 🙏

[TucksonDev]

The script works and files are much cleaner now, thanks @GreatSoshiant !
I've added a few comments to improve clarity further specially with variable naming, so it's easier to work on the script in the future.

[TucksonDev]

Thanks very much @GreatSoshiant !
There's one minor comment pending, but this LGTM 🚀