fix examples

examples/svelte/src/routes/examples/overview/Flow.svelte

@@ -145,7 +145,7 @@
 	let { updateNode } = $derived(useSvelteFlow());
 
 	function hideUnhide() {
-		updateNode('hideunhide', (node) => ({ hidden: !node.hidden }));
+		updateNode('hideunhide', (node) => ({ ...node, hidden: !node.hidden }));
 	}
 
 	// $inspect(edges);

examples/svelte/src/routes/examples/useupdatenodeinternals/Flow.svelte

@@ -55,7 +55,10 @@
 	const { updateNode } = $derived(useSvelteFlow());
 
 	const updateNodePosition = () => {
-		updateNode('1', (node) => ({ position: { x: node.position.x + 10, y: node.position.y } }));
+		updateNode('1', (node) => ({
+			...node,
+			position: { x: node.position.x + 10, y: node.position.y }
+		}));
 	};
 </script>