Lucas.Xu 19bf8e3b7a refactor: move transaction.dart to core/transform 3 lat temu
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flowy_editor_test.dart 5e7507c8e7 refactor: rename state_tree to document and move document to core/state 3 lat temu
operation_test.dart 19bf8e3b7a refactor: move transaction.dart to core/transform 3 lat temu
undo_manager_test.dart 319875529f refactor: move operation.dart to core/transform 3 lat temu