* refactor: Loro import function should return LoroEncodeError
- Change return type
- Add support for handling potential errors:
- Invalid or non-existent frontiers
- Exporting old snapshot format from trimmed snapshot doc
- Improve compatibility with trimmed docs
* fix: add tests and fix a few places that need to return err
* refactor: add detached editing config and prepare the architecture for editing detached doc
* feat: subscribe for peer id change
* fix: undo after checkout & add tests for detached editing
* test: add fuzzer for detached editing
* feat: expose detached editing configure to wasm
* test: add wasm test for detached editing