fix: 看板Hooks数据复位

src/views/dashboard/overview/components/Topology/index.vue

@@ -76,7 +76,7 @@ function fnGraphEvent(graph: Graph) {
   // 节点点击
   graph.on('node:click', evt => {
     // 获得鼠标当前目标节点
-    const node = evt.item?.getModel(); 
+    const node = evt.item?.getModel();
     if (node && node.id && !notNeNodes.includes(node.id)) {
       graphNodeClickID.value = node.id;
     }
@@ -129,6 +129,9 @@ function handleRanderGraph(
   var observer = new ResizeObserver(function (entries) {
     // 当元素大小发生变化时触发回调函数
     entries.forEach(function (entry) {
+      if (!graphG6.value) {
+        return;
+      }
       graphG6.value.changeSize(
         entry.contentRect.width,
         entry.contentRect.height - 30