* adds bulk add/remove products to/from collection. Adds endpoint updateProducts on collections that uses these bulk operations
* fix integration tests and test description
* undo change to swap
* made requested changes
* added removeProducts endpoint
* made requested changes
* fix: set collection_id null
* updated collection_id to type string | undefined
* added default relations to retrieve collection endpoint
* push snapshot
* added created at and updated at to collection list endpoint
* updated integration tests
* added q param to list collections
* updated snapshots
