Input Should be editable from Components Javascript/Typescript as inputClassName

[JessseG]

The component would be much easier to work with if it included an inputClassName in the same way it includes a popupClassName & dropdownClassName. An example of something that can't currently be done dynamically from Javscript/Typescript is changing the placeholder color dynamically. At the moment I must do this from within CSS and can't do it Dynamically based on some state change