elm compiler errors lack details when record type aliases are used... try using raw records for required args type annotations

[dillonkearns]

I believe the elm compiler will give better error messages if elm-graphql uses the raw records in the annotations for required args in the field definitions. We can keep the generated type aliases so that people can annotate helpers for generated Required/Optional args, but try using the raw record types in the field type annotations to see if it improves the error messages.