clear useLockModal for better clarity

packages/example/src/hooks/useLockModal.tsx

@@ -9,9 +9,12 @@ interface UseLockProps {
 
 // This hook is used to lock the spatial navigation of parent navigator when a modal is open
 // and to prevent the user from closing the modal by pressing the back button
-
 export const useLockModal = ({ isModalVisible, setIsModalVisible }: UseLockProps) => {
-  // Locks the parent navigator when the modal is open and unlocks it when it's closed
+  useLockParentSpatialNavigator(isModalVisible);
+  usePreventNavigationGoBack(isModalVisible, setIsModalVisible);
+};
+
+const useLockParentSpatialNavigator = (isModalVisible: boolean) => {
   const { lock, unlock } = useLockSpatialNavigation();
   useEffect(() => {
     if (isModalVisible) {
@@ -21,8 +24,12 @@ export const useLockModal = ({ isModalVisible, setIsModalVisible }: UseLockProps
       };
     }
   }, [isModalVisible, lock, unlock]);
+};
 
-  // Prevents the user from closing the modal by pressing the back button
+const usePreventNavigationGoBack = (
+  isModalVisible: boolean,
+  setIsModalVisible: (isVisible: boolean) => void,
+) => {
   const navigation = useNavigation();
   useEffect(() => {
     if (isModalVisible) {