Add support for showing network connection

[p5150j]

Description
As a user of proxy wallet, I want to be able to know what network I am on (Rococo, Mainet, Localhost).

Acceptance Criteria

1. add support for env (testnet, mainnet)
2. Derive chain from gen block from connection
3. Validate the node provided in the URL against the genesis block.
4. A user should see the network they are on.
5. Log value to console

Note
The is no need for env support as the node URL will be passed through the params.