feature request: Display user name with email

[Luorika]

Summary

When registering a user must specify username. But when authorizing on the site, the top panel displays email instead of username.

Reproduction steps

1. log in
2. View the top panel.

Expected result

The username is displayed.

Actual result

Email is displayed.

Browsers

Firefox, Chrome

OS

Windows

[fey]

We can display User's name AND email Screens from codebasics and hexlet-cv for example:

[Nika-code]

Hi, could I start working on this? could you assign it to me?

[fey]

@Nika-code fork repository, create branch and go code =) I assigned to you task

[Nika-code]

Hi, @fey I've created pull request for this task, could you take a look at it?