Reaction's name and conditions aren't recognized on save to RDF for single/cascade reaction with simple arrows

[ivanmaslow]

Steps to Reproduce

1. Add cascade reaction with Single arrows and Reaction's name/conditions to Canvas from ket:
   text-issue-2.zip
   
2. Save to RDF, observe Preview

Actual Result

• Reaction's name and conditions aren't recognized and aren't presented on Preview for each part of cascade reaction:
  

Expected Result

• Reaction's name and conditions are recognized and presented on Preview for each part of cascade reaction:
  
• Saved file can be loaded with correct positioning of text

Environment details

• Tested on CI-CD SA environment with Ketcher-Master, Indigo-2404-ket-to-rdf branches;
• Ketcher [Version 2.28.0-dev.1] Build at 2024-11-20; 09:14:36
• Indigo Version 1.27.0-dev.1.38-g6c821972-wasm32-wasm-clang-12.0.0
• Desktop, Windows 11 Enterprise
• Chrome Version 131.0.6778.70 (Official Build) (64-bit)

Notes

• Issue is detected during exploratory testing of save text for reactions - Save Name and Reaction Conditions to RDF Metadata #2404