[QA] [Improvement] Prompt user to add Berachain network in MetaMask

[tsadovska]

Describe the current behavior in detail

Reproducible on https://wormhole-connect-mainnet.netlify.app/.

Precondition:
Berachain network is not added in MetaMask.

Steps:

1. Initiate a transfer: 0.001 AVAX from Avalanche (MetaMask) to Berachain (MetaMask)
2. Click on "Claim tokens to complete transfer" button

Actual result:

• Transaction fails. Error is shown in Console:
  Error while manually redeeming: unknown - ChainNotConfiguredForConnectorError: Chain "80094" not configured for connector "injected".
• MetaMask notification to add new network does not appear.

Expected result:

• MetaMask notification to add new network appears.

Notes/ Attachments