HCM fixes for ComboBox and Statuslight (#4850)
* fix combobox HCM border color
* fix quiet border color and hover color for invalid combobox
* fix invalid combobox button border color on focus
* fix background colors for disabled comboboxes and express combobox button
* fixing statuslight color in light themes
* fix combobox button hover style for express
* fix button fill color when menu is open
* fix firefox HCM fieldbutton icon color
* remove white outline around fieldbutton icon for HCM express combobox field button
