missing i18n of placeholder values in date picker

[saschaszott]

Bug Description

Placeholder values (year, month, day) in the date picker form element are hard-coded in

dspace-angular/src/app/shared/form/builder/ds-dynamic-form-ui/models/date-picker/date-picker.component.ts

Line 51 in d5aca76

yearPlaceholder = 'year';

dspace-angular/src/app/shared/form/builder/ds-dynamic-form-ui/models/date-picker/date-picker.component.ts

Line 52 in d5aca76

monthPlaceholder = 'month';

dspace-angular/src/app/shared/form/builder/ds-dynamic-form-ui/models/date-picker/date-picker.component.ts

Line 53 in d5aca76

dayPlaceholder = 'day';

[saschaszott]

This bug is fixed in PR #2827