Add autoConnect to SquadsEmbeddedWalletAdapter

[jessupjn]

The following:

const wallets: Adapter[] = detectEmbeddedInSquadsIframe()
  ? [new SquadsEmbeddedWalletAdapter('https://iframe-preview.squads.so')]
  : [new PhantomWalletAdapter(), new SolflareWalletAdapter()];
return (
  <WalletProvider wallets={wallets} autoConnect>
    {props.children}
  </WalletProvider>
);

was giving me this error:

Type 'SquadsEmbeddedWalletAdapter[] | (PhantomWalletAdapter | SolflareWalletAdapter)[]' is not assignable to type 'Adapter[]'.
  Type 'SquadsEmbeddedWalletAdapter[]' is not assignable to type 'Adapter[]'.
    Type 'SquadsEmbeddedWalletAdapter' is not assignable to type 'Adapter'.
      Type 'SquadsEmbeddedWalletAdapter' is not assignable to type 'SignerWalletAdapter'.
        Property 'autoConnect' is missing in type 'SquadsEmbeddedWalletAdapter' but required in type 'WalletAdapterProps<string>'.

Changes were tested by importing my fork:

{
  ...
  "dependencies": {
    ...
    "@sqds/iframe-adapter": "github:jessupjn/iframe-adapter"
  }
}