fix: first update

Author: ziyujiahao

frontend/src/views/dashboard/editor/Toolbar.vue

@@ -55,7 +55,7 @@ const saveCanvasWithCheck = () => {
       opt: 'updateLeaf',
       id: dashboardInfo.value.id,
       name: dashboardInfo.value.name,
-      pid: dashboardInfo.value.pid,
+      pid: 'root',
     }
     saveDashboardResource(updateParams, function () {
       ElMessage({

frontend/src/views/dashboard/utils/canvasUtils.ts

@@ -62,7 +62,12 @@ export const saveDashboardResource = (params: any, callBack: Function) => {
           canvas_view_info: JSON.stringify(canvasViewInfo.value),
         }
         dashboardApi.create_canvas(requestParams).then((res: any) => {
-          dashboardStore.updateDashboardInfo({ id: res.id, name: params.name, dataState: 'ready' })
+          dashboardStore.updateDashboardInfo({
+            id: res.id,
+            pid: params.pid,
+            name: params.name,
+            dataState: 'ready',
+          })
           callBack(res)
         })
       } else if (params.opt === 'newFolder') {