fix: context menu not opening when right-clicking different Vue nodes (#7644)

## Summary
- Fixed issue where right-clicking on one Vue node then another would
close the context menu instead of repositioning it
- Added `showNodeOptions` function that always shows the menu at the new
position (used for contextmenu events)
- Kept `toggleNodeOptions` for the "More Options" button where toggle
behavior is expected

## Test plan
- [ ] Right-click on a Vue node to open context menu
- [ ] Right-click on a different Vue node - menu should immediately show
for the new node
- [ ] Click "More Options" button when menu is open - should close the
menu
- [ ] Click "More Options" button when menu is closed - should open the
menu



https://github.com/user-attachments/assets/bb31c2e4-12b4-4786-96ac-23b1e2b4daa0



┆Issue is synchronized with this [Notion
page](https://www.notion.so/PR-7644-fix-context-menu-not-opening-when-right-clicking-different-Vue-nodes-2ce6d73d36508145bc30fe6947b6808a)
by [Unito](https://www.unito.io)

src/renderer/extensions/vueNodes/components/LGraphNode.vue

@@ -136,7 +136,7 @@ import { computed, nextTick, onErrorCaptured, onMounted, ref, watch } from 'vue'
 import { useI18n } from 'vue-i18n'
 
 import type { VueNodeData } from '@/composables/graph/useGraphNodeManager'
-import { toggleNodeOptions } from '@/composables/graph/useMoreOptionsMenu'
+import { showNodeOptions } from '@/composables/graph/useMoreOptionsMenu'
 import { useErrorHandling } from '@/composables/useErrorHandling'
 import { st } from '@/i18n'
 import {
@@ -290,7 +290,7 @@ const handleContextMenu = (event: MouseEvent) => {
   handleNodeRightClick(event as PointerEvent, nodeData.id)
 
   // Show the node options menu at the cursor position
-  toggleNodeOptions(event)
+  showNodeOptions(event)
 }
 
 onMounted(() => {