fix: Empty value is undefined not null.

Author: iM-GeeKy

src/Date/inputUtils.ts

@@ -23,7 +23,7 @@ export default function useDateInput({
   const [error, setError] = React.useState<null | string>(null)
   const formatter = useInputFormatter({ locale })
   const inputFormat = useInputFormat({ formatter, locale })
-  const formattedValue = value !== null ? formatter.format(value) : ''
+  const formattedValue = value ? formatter.format(value) : ''
   const onChangeText = (date: string) => {
     const dayIndex = inputFormat.indexOf('DD')
     const monthIndex = inputFormat.indexOf('MM')