refactor(server): stacks (#11453)

* refactor: stacks

* mobile: get it built

* chore: feedback

* fix: sync and duplicates

* mobile: remove old stack reference

* chore: add primary asset id

* revert change to asset entity

* mobile: refactor mobile api

* mobile: sync stack info after creating stack

* mobile: update timeline after deleting stack

* server: update asset updatedAt when stack is deleted

* mobile: simplify action

* mobile: rename to match dto property

* fix: web test

---------

Co-authored-by: Alex <alex.tran1502@gmail.com>

mobile/test/modules/shared/sync_service_test.dart

@@ -32,7 +32,6 @@ void main() {
       isFavorite: false,
       isArchived: false,
       isTrashed: false,
-      stackCount: 0,
     );
   }