Rwolfe-Nava

# Summary of changes 1. Added mfa_phone_verification_otp_submitted event 2. Added mfa_phone_enrollment_otp_submitted event 3. Added unit tests for the above events. Note: This PR covers tickets: LG-6983, LG-7041

Some components do not behave to flexbox standards

2

**Describe the bug** Some rules and their components do not seem to respect flexbox design. For example, if I have an outer container with something like: `ds-u-display--flex` `ds-u-flex-direction--column` `ds-u-align-items--center` `ds-u-justify-content--center`...