* move button into login modal with social buttons
* adds email link next to login field when filling it
* adds proper validation messages
* improves forgot password flash clearing
* more tests
implemented review items.
Blocking previous codes - valid 2-factor auth tokens can only be authenticated once/30 seconds.
I played with updating the “last used” any time the token was attempted but that seemed to be overkill, and frustrating as to why a token would fail.
Translatable texts.
Move second factor logic to a helper class.
Move second factor specific controller endpoints to its own controller.
Move serialization logic for 2-factor details in admin user views.
Add a login ember component for de-duplication
Fix up code formatting
Change verbiage of google authenticator
add controller tests:
second factor controller tests
change email tests
change password tests
admin login tests
add qunit tests - password reset, preferences
fix: check for 2factor on change email controller
fix: email controller - only show second factor errors on attempt
fix: check against 'true' to enable second factor.
Add modal for explaining what 2fa with links to Google Authenticator/FreeOTP
add two factor to email signin link
rate limit if second factor token present
add rate limiter test for second factor attempts
