add api option on polkadot to shush its warning logs (#415)

related entropyxyz/cli#48
closes #303 

I tested this manually had to temporarily disable `patch-package` i
think because the cli is also has a polkadot dependency or my
misunderstanding of are tooling we still get the warning logs from the
api on creation in the cli. this should quiet those.

src/index.ts

@@ -97,7 +97,7 @@ export default class Entropy {
   async #init (opts: EntropyOpts) {
     this.keyring = opts.keyring
     const wsProvider = new WsProvider(opts.endpoint)
-    this.substrate = new ApiPromise({ provider: wsProvider })
+    this.substrate = new ApiPromise({ provider: wsProvider, noInitWarn: true })
     await this.substrate.isReadyOrError // throws an error if fails
 
     this.registrationManager = new RegistrationManager({