Pull Request Overview

This PR fixes a content loss issue in the editor diff view by creating a copy of the Yjs document and adding QMS inline comment configuration. The change prevents potential data conflicts between the collaborative editor and the diff viewer by ensuring they operate on separate document instances.

• Creates a deep copy of the Yjs document using state encoding/decoding
• Configures the diff viewer to use the document copy instead of the original
• Adds QMS inline comment configuration with disabled highlighting

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