DateInput: Fix type of value props

[wildtangent]

The DateInput component types for the value and defaultValue prop expect to be both the default type for the InputHTMLAttributes<HTMLInputElement>, e.g. string | string[] | undefined but ALSO a DateInputValue which expects an object of. { day: string, month: string, year: string }

It is not possible for the value to be both a string and an object!

This fix allows the value and defaultValue to be set as a DateInputValue only by using Omit to exclude the default types from the HTMLInputElement type, in the same way that label was omitted.

This change allows the DateInput component to work properly with react-hook-form which passes the value into the component via the register function and onChange functions.

[daniel-ac-martin]

LGTM!

[daniel-ac-martin]

@wildtangent: Looks good. Before I merge though, can I confirm that this is Crown Copyright? (Or that you are able to assign it to the Crown.)

[wildtangent]

@wildtangent: Looks good. Before I merge though, can I confirm that this is Crown Copyright? (Or that you are able to assign it to the Crown.)

Per our discussion, I can confirm that the code would be under Crown Copyright. 👍 👑

[daniel-ac-martin]

Thanks @wildtangent.