Fix test cases

Turns out the vuedraggable import has side effects that break other
test cases. This is awful and requires further investigation, but for
now, the import is performed at execution time

tests-ui/tests/litegraph/core/__snapshots__/litegraph.test.ts.snap

@@ -134,6 +134,7 @@ LiteGraphGlobal {
   "WIDGET_BGCOLOR": "#222",
   "WIDGET_DISABLED_TEXT_COLOR": "#666",
   "WIDGET_OUTLINE_COLOR": "#666",
+  "WIDGET_PROMOTED_OUTLINE_COLOR": "#BF00FF",
   "WIDGET_SECONDARY_TEXT_COLOR": "#999",
   "WIDGET_TEXT_COLOR": "#DDD",
   "allow_multi_output_for_events": true,

tests-ui/tests/widgets/proxyWidget.test.ts

@@ -1,15 +1,21 @@
 import { describe, expect, test, vi } from 'vitest'
 
-import '@/core/graph/subgraph/proxyWidget'
-//import { ComponentWidgetImpl, DOMWidgetImpl } from '@/scripts/domWidget'
-
-import { LGraphNode, type SubgraphNode } from '@/lib/litegraph/src/litegraph'
+import { registerProxyWidgets } from '@/core/graph/subgraph/proxyWidget'
+import {
+  type LGraphCanvas,
+  LGraphNode,
+  type SubgraphNode
+} from '@/lib/litegraph/src/litegraph'
 
 import {
   createTestSubgraph,
   createTestSubgraphNode
 } from '../litegraph/subgraph/fixtures/subgraphHelpers'
 
+registerProxyWidgets({
+  canvas: { addEventListener() {} }
+} as unknown as LGraphCanvas)
+
 vi.mock('@/renderer/core/canvas/canvasStore', () => ({
   useCanvasStore: () => ({})
 }))