Don't log failed password attempts

[alopezlago]

https://github.com/qbreader/website/blob/5b9bc6f47f023f11dda9d24e8facfa6b8987e593/routes/auth.js#LL98C15-L98C15

This will also log passwords that fail because of a typo, which will reveal enough information to guess the password. The password shouldn't be logged.