chore: MMConnect Configuration Improvements

[adonesky1]

Makes improvements to MM Connect configurability and testabilty

• Scope selection for MMConnect: Auto Connect via MM Connect now passes selected scopes from checkboxes instead of hardcoding ['eip155:1'].
• Network checkboxes: Removed disabled attribute so scopes can be selected before connecting.
• Supported networks configuration: Added RPC URLs for all featured networks (Ethereum, Linea, Arbitrum, Avalanche, BNB, Optimism, Polygon, zkSync, Base, Localhost, Solana) in MetaMaskConnectProvider.
• Disconnect button: Added red "Disconnect MMConnect Session" button that appears when a MMConnect session is active.

This enables users to select desired scopes via checkboxes before auto-connecting via MMConnect, improving the test dapp's flexibility for multi-chain testing.

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Note

Enables scope-selectable MM Connect auto-connect, configures supported networks, and adds a session disconnect button.

• UI (App.tsx):
  • Auto Connect via MM_CONNECT_ID now passes selected scopes from checkboxes/custom inputs.
  • Network checkboxes enabled for pre-connection scope selection.
  • Shows red "Disconnect MMConnect Session" button when an MM Connect session is active.
• SDK:
  • SDK.setExtensionIdAndConnect accepts optional scopes: CaipChainId[] and forwards to provider for MM Connect.
  • useSDK.connect signature updated to accept optional scopes and propagate to SDK.
• MetaMaskConnectProvider:
  • connect(scopes?: Scope[]) accepts scopes; defaults to ['eip155:1'] when none provided.
  • Adds supportedNetworks RPC URLs for featured chains (Ethereum, Linea, Arbitrum, Avalanche, BNB, OP, Polygon, zkSync, Base, Localhost, Solana).

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