Correct the logic for checking the existence of extensionDomain in …

…the `bco` object within the `ExtensionDomain` component. This fix ensures accurate handling of the `extensionDomain` property. (#427)

- Update check from `"extension_domain" in bco` to `typeof bco.extensionDomain !== "undefined"`.
- Remove unnecessary comment from the remove button.

These changes improve the reliability and readability of the component.

Changes to be committed:
	modified:   client/src/components/builder/extensionDomain.js

client/src/components/builder/extensionDomain.js

@@ -12,10 +12,10 @@ import Tooltip from "@mui/material/Tooltip";
 export const  ExtensionDomain = ({onSave}) => {
   const dispatch = useDispatch();
   const bco = useSelector(state => state.bco.data)
-  let has_extension = "extension_domain" in bco
+  let has_extension = typeof bco.extensionDomain !== "undefined";
   const extensionDomain = has_extension ? bco.extension_domain : [];
   const [newSchema, setNewSchema] = React.useState("")
-
+  
   const addExtension = async () => {
     dispatch(getExtension({newSchema}))
       .unwrap()
@@ -88,8 +88,6 @@ export const  ExtensionDomain = ({onSave}) => {
                 fullWidth
                 onClick={() => removeRows(index)}>
                 <RemoveCircleIcon fontSize="23" />
-
-                {/* Remove */}
               </Button>
             </CardContent>)
         }))