foris-js/src/bootstrap/DataTimeInput.md

Adopted from `react-datetime/DateTime` datatime picker component. It uses
`momentjs` see example.

It requires `ForisTranslations.locale` to be defined in order to use right
locale.

```js
ForisTranslations = { locale: "en" };

import { useState, useEffect } from "react";
import moment from "moment/moment";

const [dataTime, setDataTime] = useState(moment());
const [error, setError] = useState();
useEffect(() => {
    dataTime.isValid() ? setError(null) : setError("Invalid value!");
}, [dataTime]);

<DataTimeInput
    label="Time to sleep"
    value={dataTime}
    error={error}
    helpText="Example helptext..."
    onChange={(value) => setDataTime(value)}
/>;
```