[Feature Request] Add revalidation modes for Form

[Glazy]

A common form UX pattern is "reward early, punish late". This can only be achieved if it is possible to use different logic when validating and re-validating the form.

Other popular form libraries like Formik, React Hook Form, and Conform support this pattern.

I'd like to be able to, at the form level, run initial validations onBlur, but run any subsequent validations (especially if the field has errors) onChange.

This can be achived at the Field level by doing something like the following:

validators={{
  onBlur: ({ value, fieldApi }) => {
    if (fieldApi.state.meta.errors.length) return false

    // validation logic here...
  },
  onChange: ({ value, fieldApi }) => {
    if (!fieldApi.state.meta.errors.length) return false

    // validation logic here...
  },
}}

I'd like to be able to do this at the Form level whilst running my validations through one of the many Standard Schema validation libraries.