Scenario 2.1. Update Username
2.1.F2. Username update fails when required fields are empty.
GIVENuser already logged inANDuser visit homeWHENuser click top right menu button

THENuser sees the popup menuWHENuser click my account button

THENuser redirected to account pageWHENuser click username button

THENuser redirected to update username page

WHENuser clears username input

WHENuser click save button

THENuser sees error notification "Validation failed, Please check the highlighted fields."

THENuser sees error message "The username field is required."
