[backport core/1.32] Feat: Alt+Drag to clone - Vue Nodes (#6860)

Backport of #6789 to `core/1.32`

Automatically created by backport workflow.

┆Issue is synchronized with this [Notion
page](https://www.notion.so/PR-6860-backport-core-1-32-Feat-Alt-Drag-to-clone-Vue-Nodes-2b46d73d365081e0ac21c1dc61189a7c)
by [Unito](https://www.unito.io)

Co-authored-by: Alexander Brown <drjkl@comfy.org>
Co-authored-by: github-actions <github-actions@github.com>

src/composables/graph/useGraphNodeManager.ts

@@ -13,6 +13,7 @@ import type {
 import type { IBaseWidget } from '@/lib/litegraph/src/types/widgets'
 import { useLayoutMutations } from '@/renderer/core/layout/operations/layoutMutations'
 import { LayoutSource } from '@/renderer/core/layout/types'
+import type { NodeId } from '@/renderer/core/layout/types'
 import type { InputSpec } from '@/schemas/nodeDef/nodeDefSchemaV2'
 import { isDOMWidget } from '@/scripts/domWidget'
 import { useNodeDefStore } from '@/stores/nodeDefStore'
@@ -46,7 +47,7 @@ export interface SafeWidgetData {
 }
 
 export interface VueNodeData {
-  id: string
+  id: NodeId
   title: string
   type: string
   mode: number