fix(server): skip stacked assets in duplicate detection (#16380)

* skip stacked assets in duplicate detection

* update sql

* handle stacking after duplicate detection runs

server/src/queries/asset.repository.sql

@@ -333,6 +333,7 @@ with
       and "assets"."duplicateId" is not null
       and "assets"."deletedAt" is null
       and "assets"."isVisible" = $2
+      and "assets"."stackId" is null
     group by
       "assets"."duplicateId"
   ),