Frontend user verification error when there is an extra space

[MCatherine1994]

Describe the task
When try to verify the user, if put an extra space in front of the username by accident, the user won't be found

Acceptance Criteria

• Ignore the extra space in front of the username
• second
• third

Additional context

[OlgaLiber2]

I'll wait to address this one because if we move to predictive search this issue will go away.