Email text field should verify on blur

[huayunh]

When a user is typing their email address, the email field should not get flagged for "invalid email address" until the user blurs (unfocuses) from the email field.

See docit for a detailed description on this behavior https://pxblue.github.io/patterns/forms#verifying-on-blur

What are the steps to reproduce?

1. Go to login
2. Type in the email field

Screenshots or links to minimum reproduction example

Environment

MacOS Chrome