Buttons not translated

[sfarkas1988]

Hey guys, my buttons (ok, cancel, clear) are not translated properly and I cannot find any way to overwrite the text of the buttons.
Following my code to render DateInput in german. Besides of the buttons everything else is translated properly.

`import deLocale from "date-fns/locale/de";
import DateFnsUtils from '@date-io/date-fns';
import {DateInput} from 'react-admin-date-inputs';

<DateInput
alwaysOn
source="startDate"
label="Start"
parse={dateParser}
providerOptions={{ utils: DateFnsUtils, locale: deLocale }}
options={{ format: 'dd.MM.YYYY', clearable: true }}
/>`

Thank you in advance.