🐛 Fix incorrect data id assignation on creating a snapshot (#5934)

* 📎 Set proper name to relink-refs mechanism function

* 🐛 Fix incorrect id assignation on snapshot file resolution

* ♻️ Use uniform api for file retrieval on file snapshot code

backend/test/backend_tests/rpc_file_snapshot_test.clj

@@ -97,6 +97,7 @@
             (th/db-query :file-change
                          {:file-id (:id file)}
                          {:order-by [:created-at]})]
+
         (t/is (= 2 (count rows)))
         (t/is (= "user" (:created-by row1)))
         (t/is (= "system" (:created-by row2)))))