fix Vue node border styles in different states (executing, error, selected) (#6018)

- Use exact tokens from Figma
- Fix issue in which node is stuck in `executing` state after it errors

┆Issue is synchronized with this [Notion
page](https://www.notion.so/PR-6018-fix-Vue-node-border-styles-in-different-states-executing-error-selected-2896d73d365081f39000fc3e42811f0d)
by [Unito](https://www.unito.io)

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

@@ -319,10 +319,9 @@ const { latestPreviewUrl, shouldShowPreviewImg } = useNodePreviewState(
 )
 
 const borderClass = computed(() => {
-  return (
-    (hasAnyError.value && 'border-error') ||
-    (executing.value && 'border-node-executing')
-  )
+  if (hasAnyError.value) return 'border-node-stroke-error'
+  if (executing.value) return 'border-node-stroke-executing'
+  return 'border-node-stroke'
 })
 
 const outlineClass = computed(() => {