Add asset deletion progress indicator (#7906)

## Summary

Currently the delay between user action and visual response is too long
and it looks like it hasn't worked.
This adds a visual indicator that the action is processing.

## Changes

- add loading indicator while asset is deleting

## Screenshots (if applicable)
(Artifically delayed deletion)


https://github.com/user-attachments/assets/a9a8b9fe-896d-4666-b643-ec8b990f6444

┆Issue is synchronized with this [Notion
page](https://www.notion.so/PR-7906-Add-asset-deletion-progress-indicator-2e26d73d365081ed82b8e770ba3d0615)
by [Unito](https://www.unito.io)

---------

Co-authored-by: Alexander Brown <drjkl@comfy.org>
Co-authored-by: Jin Yi <jin12cc@gmail.com>

src/composables/queue/useJobMenu.test.ts

@@ -40,7 +40,7 @@ vi.mock('@/platform/assets/composables/media/assetMappers', () => ({
 }))
 
 const mediaAssetActionsMock = {
-  confirmDelete: vi.fn()
+  deleteAssets: vi.fn()
 }
 vi.mock('@/platform/assets/composables/useMediaAssetActions', () => ({
   useMediaAssetActions: () => mediaAssetActionsMock
@@ -198,7 +198,7 @@ describe('useJobMenu', () => {
     }))
     queueStoreMock.update.mockResolvedValue(undefined)
     queueStoreMock.delete.mockResolvedValue(undefined)
-    mediaAssetActionsMock.confirmDelete.mockResolvedValue(false)
+    mediaAssetActionsMock.deleteAssets.mockResolvedValue(false)
     mapTaskOutputToAssetItemMock.mockImplementation((task, output) => ({
       task,
       output
@@ -666,7 +666,7 @@ describe('useJobMenu', () => {
   })
 
   it('deletes preview asset when confirmed', async () => {
-    mediaAssetActionsMock.confirmDelete.mockResolvedValue(true)
+    mediaAssetActionsMock.deleteAssets.mockResolvedValue(true)
     const { jobMenuEntries } = mountJobMenu()
     const preview = { filename: 'foo', subfolder: 'bar', type: 'output' }
     const taskRef = { previewOutput: preview }
@@ -681,7 +681,7 @@ describe('useJobMenu', () => {
   })
 
   it('does not refresh queue when delete cancelled', async () => {
-    mediaAssetActionsMock.confirmDelete.mockResolvedValue(false)
+    mediaAssetActionsMock.deleteAssets.mockResolvedValue(false)
     const { jobMenuEntries } = mountJobMenu()
     setCurrentItem(
       createJobItem({

src/composables/queue/useJobMenu.ts

@@ -210,8 +210,8 @@ export function useJobMenu(
     if (!task || !preview) return
 
     const asset = mapTaskOutputToAssetItem(task, preview)
-    const success = await mediaAssetActions.confirmDelete(asset)
-    if (success) {
+    const confirmed = await mediaAssetActions.deleteAssets(asset)
+    if (confirmed) {
       await queueStore.update()
     }
   }