feat: test faucet website (#702)

* feat: add faucet website test

* review: refactor test setup and comment

* review: update js script to check failed requests

* review: remove unreadable literals and comment genesis block

* review: improve socket addr error handling

* review: document test

* review: remove sleep and move code

* fix: add stdout to wait for chromedriver

* chore: format

* review: generate faucet account in the test

* review: remove unnecessary PathBuf