bug: transaction is failing with "Unrecognized chain ID" when network is not setup in wallet

[wa0x6e]

When trying to build a transaction on a network not installed on the wallet, the transaction will just fail with the error "Unrecognized chain ID" when trying to switch the wallet to the target network

Before triggering a network change on the user wallet, we should check first if the target network exits, and if not, we can either:

• Return a more meaningful error message (e.g. your wallet does not support the network X, please install it first)
• Send an wallet_addEthereumChain request on our end, to propose to setup the network in the wallet from our end