Improve the error message when the user/password is wrong

[scraly]

When we try to log in a Harbor registry, when the user and/or the password is wrong, the message displayed to the user is not very understandable.

$ harbor login xxxxxxxx.c1.de1.container-registry.ovh.net -u xxxxxx -p xxxxxxx
Error: login failed: login failed, please check your credentials: [GET /users/current][401] getCurrentUserInfoUnauthorized  &{Errors:[0x14000158240]}

A 401 HTTP code is a system message and not a user message :).

Thank you.

[meethereum]

I think even while logging in, a feedback message like, "Logged in as (username)", or login succeeded would be useful. It is generally the case with all CLI login commands like docker login and gh auth login . Maybe I can work on this? @bupd