[bug] - react final form validation doesn't detect changes to custom components

[chrismclarke]

Describe the bug
Other fields validate fine and values are passed correctly, but for some reason this value update doesn't trigger validation methods and so validation has been removed from how-to create tutorial_time and difficulty_level fields, as well as custom components

To Reproduce
Go to CreateHowTo.tsx and try add validate={required} to fields with custom components

Expected behavior
No validation errors

Additional context
You can log validation errors by uncommented button at bottom of the page

child of #3

[chrismclarke]

fixed, two issues, one was formvalues were being passed to validation object and not react form values, second was validation was being called onblur but custom components only bound to input onchange events, so needed to add onblur call/handler