Add better logging if initial login fails

In the event that the first login fails to checkout and download the jadegit schema - additional logging should be implemented to give the user a better idea what happened.

For example, if the user is behind a proxy server that doesn't handle the gitlab.com domain, then the user only sees the following in the logs

25/04/2023 2:09:01 pm 01268-7c84 UserInfo: userName=abc123
25/04/2023 2:09:02 pm 01268-7c84 [ERROR] request failed with status code: 401