filter template new prop, samje as Dropdown (#8199)

Author: sergiomendi

components/lib/multiselect/MultiSelectHeader.js

@@ -90,6 +90,7 @@ export const MultiSelectHeader = React.memo((props) => {
                     element: content,
                     filterOptions: filterOptions,
                     onFilter: onFilter,
+                    filterInputKeyDown: props.onFilterKeyDown,
                     filterIconClassName: props.filterIconClassName,
                     props
                 };