feat: Wallet Connect

[ricardocr987]

Changes:

• AppStateContext now exposes the functions of useConnection, also the state about the connection.
• useConnection implements auto-login and is ready to handle multiple connection implementations, such as MetaMask and WalletConnect
• useMetamask sets up the listeners and callbacks
• useWalletConnect initializes the client only when required and manages its own listeners.

There is one problem with this implementation yet: In wallet connect, you need to connect to all required chains at the same time on the first connection, then the wallet does not need to switch chains because it is already connected, ideally I would allow in applications to connect several networks, wallet picker should accept multiple connected network.