When adjust the width of form, datefield's height is not changed.

While working on the related we had to set the fixed line-height to the date field, so that it renders properly without depending on CSS of the form.

Dev notes:

• need to make date field follow the same responsiveness rules as the form (possibly by adding the respective break points in datefield.scss).
• or as an alternative - try to re-align the height settings with the form (see if we can handle the line-height property better so that we don't have to override it specifically for the datefield).