Update litegraph (#262)

Author: huchenlei

package-lock.json

@@ -47,7 +47,7 @@
   },
   "dependencies": {
     "@atlaskit/pragmatic-drag-and-drop": "^1.2.1",
-    "@comfyorg/litegraph": "^0.7.30",
+    "@comfyorg/litegraph": "^0.7.31",
     "@primevue/themes": "^4.0.0-rc.2",
     "@vitejs/plugin-vue": "^5.0.5",
     "class-transformer": "^0.5.1",