fix(ComboBox): highlight selected item based on item id if present (#8313)

Co-authored-by: kodiakhq[bot] <49736102+kodiakhq[bot]@users.noreply.github.com>

Author: emyarod

packages/react/src/components/ComboBox/ComboBox.js

@@ -347,7 +347,8 @@ const ComboBox = (props) => {
                             tabIndex="-1"
                             isHighlighted={
                               highlightedIndex === index ||
-                              (selectedItem && selectedItem.id === item.id) ||
+                              (selectedItem?.id &&
+                                selectedItem?.id === item.id) ||
                               false
                             }
                             title={