chore: monitor improvements

[SantiagoPittella]

This PR gathers 4 monitor fixes and improvements remaining from #1907 .

Order by commit:

1. Uses serde json for the explorer and faucet responses to simplify handling, also adds a new field added to the faucet metadata response.
2. Fixes and issue with copy buttons being placed in a new line.
3. Remove the persistence of account used for the network transactions tests (wallet and counter) and goes full in-memory.
4. Adds a threshold to mark the ntxs as unhealthy, currently we were just displaying that there was a difference between the coutner value and the expected value but didn't marking the service as unhealthy. Not we have a configurable threshold difference.
5. Changes the auth component for the counter account to use NetworkAccount and adds the increase note in the allow list

[SantiagoPittella]

After #2095 merge we can also move the monitor to use the NetworkAuth component allowing only our own note to be executed nvm, it was already possible