fix: prevent canvas zoom when scrolling image history dropdown (#10550)

## Summary
 
Fix #10549 where using the mouse wheel over the image history dropdown
(e.g., in "Load Image" nodes) would trigger canvas zooming instead of
scrolling the list.

## Changes
Added `data-capture-wheel="true" ` to the root container. This attribute
is used by the `TransformPane` to identify elements that should consume
wheel events.

## Screenshots
 
after


https://github.com/user-attachments/assets/8935a1ca-9053-4ef1-9ab8-237f43eabb35

┆Issue is synchronized with this [Notion
page](https://www.notion.so/PR-10550-fix-prevent-canvas-zoom-when-scrolling-image-history-dropdown-32f6d73d365081c4ad09f763481ef8c2)
by [Unito](https://www.unito.io)

---------

Co-authored-by: Terry Jia <terryjia88@gmail.com>
Co-authored-by: Alexander Brown <drjkl@comfy.org>

src/renderer/extensions/vueNodes/widgets/components/form/dropdown/FormDropdownMenu.test.ts

@@ -110,4 +110,19 @@ describe('FormDropdownMenu', () => {
     const virtualGrid = wrapper.findComponent({ name: 'VirtualGrid' })
     expect(virtualGrid.props('maxColumns')).toBe(1)
   })
+
+  it('has data-capture-wheel="true" on the root element', () => {
+    const wrapper = mount(FormDropdownMenu, {
+      props: defaultProps,
+      global: {
+        stubs: {
+          FormDropdownMenuFilter: true,
+          FormDropdownMenuActions: true,
+          VirtualGrid: true
+        }
+      }
+    })
+
+    expect(wrapper.attributes('data-capture-wheel')).toBe('true')
+  })
 })

src/renderer/extensions/vueNodes/widgets/components/form/dropdown/FormDropdownMenu.vue

@@ -98,6 +98,7 @@ const virtualItems = computed<VirtualDropdownItem[]>(() =>
 <template>
   <div
     class="flex h-[640px] w-103 flex-col rounded-lg bg-component-node-background pt-4 outline -outline-offset-1 outline-node-component-border"
+    data-capture-wheel="true"
   >
     <FormDropdownMenuFilter
       v-if="filterOptions.length > 0"

src/renderer/extensions/vueNodes/widgets/components/form/dropdown/FormDropdownMenuActions.vue

@@ -103,6 +103,7 @@ function toggleBaseModelSelection(item: FilterOption) {
   <div class="text-secondary flex gap-2 px-4">
     <FormSearchInput
       v-model="searchQuery"
+      autofocus
       :class="
         cn(
           actionButtonStyle,