Fix form helper types for setDefaults() method (React) and defaults() method (Vue)

[shealavington]

Allows types than strings, based on the type passed in by the implementer.
fixes #1502

Successfully tested locally in my project.

[daleweaver777]

I'm running into this issue also. I have typed objects in my useForm and get a typescript error when trying to set defaults because it's expecting a string.

const props = defineProps<{
  workOrder: WorkOrder;
  jobCosts: JobCost[];
}>();

const editForm = useForm({
  workOrder: props.workOrder,
  jobCosts: props.jobCosts,
  deletedJobCosts: new Array<number>(),
});

// this causes a type error because it's expecting strings
editForm.defaults({ workOrder: props.workOrder, jobCosts: props.jobCosts, deletedJobCosts: [] });

Another problem is the typing with the errors property. It doesn't allow for validation errors returned from Laravel for array values being validated. When I submit an array value to Laravel and the validation returns an error for an array field, I can't access the error for the array value in my template using form.errors['jobCosts.1.amount'] without getting a type error.

[reinink]

@shealavington Hey thanks so much for submitting this fix! I've made some further improvements to these types by taking advantage of the FormDataConvertible type that exists in Inertia core.

[reinink]

These changes have been published in v1.0.11 👍