Please note that in some locales (German, Spanish, etc.) week starts on Monday by default. If you want to set Monday as the first week day within e.g. English locale, you can define it explicitly via the words property of the Locale module. See the related docs.
<script>
import { DatePicker, Locale } from "../../src/index";
</script>
<Locale words={{ calendar:{weekStart: 1} }}>
<DatePicker />
</Locale>
