Email in user settings should be fetched from UserIdentity

[minottic]

Issue Name

Email in user settings should be fetched from UserIdentity

Summary

Currently the email shown in user settings is taken from User, resulting in showing the email automatically generated by loopback at user creation. The real email, coming from the user profile, is stored in UserIdentity.profile.email. This value should be fetched

Steps to Reproduce

Log in, go to user settings, check the email

Current Behaviour

email comes from User.email

Expected Behaviour

email should come from UserIdentity.profile.email

Extra Details

Here you should include details about the system (if it is unique) and possible information about a fix (feel free to link to code where relevant). Screenshots/GIFs are also fine here.