Improve DatePicker and TimePicker accessibility.

[simonssspirit]

Improve DatePicker and TimePicker accessibility.

Currently, both components how errors for invalid attributes:

Error: Attribute autocorrect not allowed on element[ input](https://html.spec.whatwg.org/multipage/#the-input-element) at this point

Error: Attribute aria-expanded not allowed on element[ input](https://html.spec.whatwg.org/multipage/#the-input-element) at this point.

Please research if and where these attributes have to be changed.