### What?
Fix the folder view for upload documents only using
`formatFolderOrDocumentItem()` function and only if the upload is an
image, even when there's a `thumbnailURL` available.
### Why?
Folder view for upload collections (especially those with sharp resizing
disabled) renders different thumbnails between the folder view and list
view. With sharp resizing disabled and an `adminThumbnail` fn provided,
the list view will correctly render optimised images, while the folder
view renders full source images - resulting in a huge discrepancy in
loaded image sizes.
### How?
We're passing the `value.thumbnailURL` **before** the
`formatFolderOrDocumentItem()` call rather than passing it directly as a
function parameter to cover cases where non-image uploads have a
`thumbnailURL` defined.
Fixes#13246