Subscript rendering in graph broken in Safari

The specific details of the fix can be found in a pull request on GitHub, specifically at https://github.com/mermaid-js/mermaid-live-editor/pull/1424. This resolution points towards enhancements or corrections made to the Mermaid Live Editor, which is reflected through the mentioned pull request link. The integration of this fix into the live editor suggests improvements in functionality, user experience, or bug resolution, contributing positively to the project's development and usability.