Add expandable output stacks to the assets list view.
Monolith ver. of https://github.com/Comfy-Org/ComfyUI_frontend/pull/8298
and its children
List view currently collapses multi-output jobs into a single row, which
makes sibling outputs easy to miss and causes selection/zoom behavior to
drift once items are expanded elsewhere. This change adds a stack toggle
to list rows, expands child outputs derived from job data, and keeps
list-view selection and gallery navigation aligned with the expanded
list. Output mapping and “load full outputs” checks are centralized so
folder view and stacks share the same helper, and job-detail parsing now
yields previewable outputs for the list view. Asset actions now prefer
metadata prompt IDs to support the composite IDs used by stacked
outputs.
┆Issue is synchronized with this [Notion
page](https://www.notion.so/PR-8283-Add-expandable-output-stacks-to-assets-list-view-2f16d73d365081a99fc6f1519ac2e57c)
by [Unito](https://www.unito.io)
---------
Co-authored-by: GitHub Action <action@github.com>
Co-authored-by: Johnpaul Chiwetelu <49923152+Myestery@users.noreply.github.com>
