react-kit: DateInput. Fix mouse event callbacks signature

[sutarmin]

We have wrong types for the following DateInput props: onFocus, onBlur, onMouseEnter and onMouseLeave. Currently, their inferred type is (((event: React.MouseEvent<HTMLElement>) => void) & (() => void)) | undefined which doesn't allow us to pass a callback that requires MouseEvent (because of () => void part).

The reason is that this props declared twice: on the TFullInputProps (with correct signature) and on TDateInputOwnProps itself (wrong one). The solution here is to simply remove these props from TDateInputOwnProps and let them be inferred from TFullInputProps.

[raveclassic]

Be careful because these handlers may be throttled and this may conflict with event pooling done by React under the hood.