style: fix formatting in ComboWidget tests

Amp-Thread-ID: https://ampcode.com/threads/T-019c7a94-a709-7773-b282-458d6bcb9e41

src/lib/litegraph/src/widgets/ComboWidget.test.ts

@@ -1064,7 +1064,8 @@ describe('ComboWidget', () => {
           value: '',
           options: {
             values: [],
-            placeholder: 'No models found in ComfyUI/models/checkpoints folder...'
+            placeholder:
+              'No models found in ComfyUI/models/checkpoints folder...'
           }
         }),
         node
@@ -1082,7 +1083,8 @@ describe('ComboWidget', () => {
           value: 'model.safetensors',
           options: {
             values: ['model.safetensors', 'other.safetensors'],
-            placeholder: 'No models found in ComfyUI/models/checkpoints folder...'
+            placeholder:
+              'No models found in ComfyUI/models/checkpoints folder...'
           }
         }),
         node

src/renderer/extensions/vueNodes/widgets/composables/useComboWidget.test.ts

@@ -163,10 +163,11 @@ describe('useComboWidget', () => {
     expect(mockNode.addWidget).toHaveBeenCalledWith(
       'combo',
       'inputName',
-      undefined,
+      '',
       expect.any(Function),
       expect.objectContaining({
-        values: []
+        values: [],
+        placeholder: undefined
       })
     )
     expect(widget).toBe(mockWidget)