fix(nav): Check user role before dispatching cart

- Dispatch the cart only if the user role is "buyer."
- Do not dispatch the cart for users with "seller" or "admin" roles.

src/components/Nav.tsx

@@ -28,7 +28,9 @@ const Nav = () => {
 			if (!data) {
 				dispatch(fetchUserProfile()).unwrap();
 			}
-			dispatch(getCarts()).unwrap();
+			if (userData?.role === 'BUYER') {
+				dispatch(getCarts()).unwrap();
+			}
 		}
 	}, [accessToken, data, dispatch]);
 

src/pages/ProductsPage.tsx

@@ -64,12 +64,14 @@ const ProductsPage = () => {
 
 	useEffect(() => {
 		const fetchCarts = async () => {
-			try {
-				if (carts && !carts.length) {
-					await dispatch(getCarts()).unwrap();
+			if (tokenInfo?.role === 'BUYER') {
+				try {
+					if (carts && !carts.length) {
+						await dispatch(getCarts()).unwrap();
+					}
+				} catch (error) {
+					showErrorMessage('Error fetching carts!');
 				}
-			} catch (error) {
-				showErrorMessage('Error fetching carts!');
 			}
 		};
 		fetchCarts();