Support wallet connect 2 in the Taquito test dapp

[roxaneletourneau]

Is your feature request related to a problem and use case? Please describe.
Allow users to connect through beacon or wallet connect on the test dapp.

Describe the solution you'd like

• Add a button to connect to a wallet using wc2 and the WalletConnect2 class from Taquito
• wc2 allows to connect to multiple accounts; show all connected accounts; the user should be able to switch between them in the dapp
• Allow connecting using an existing pairing
• Should we add an option to connect through an existing session?
• Test the behavior on session expiry (NOTE: a session expires after seven days. It is not possible to lower the expiry time. See this Q&A)
• Use Ecad Waku node by default in the dapp and add an option to use wc cloud service with a project id.
• When we are on the test page of the dapp and reload it, we are brought back to the home page, the connection to the wallet is lost, and we need to connect again. See if we can stay on the same page without connecting the wallet again. The last active session should be used.
• Handle session request expiration; if the connection was never approved on the wallet side
• Handle wallet deleted session. If the session is deleted in the wallet, the dapp should listen for the event and reset the dapp state, clean up from user session (for example, go back to the connect wallet page)
• Handle wallet updated session; integrate the updated session state into the dapp state. Accounts might have changed; call walletConnect2.getAccounts and update the state of the app (selected account, available accounts, balance, )
• Add a ping button?