Zero-width spaces causing character rendering issues in preview environment

[patrikbraborec]

Zero-width spaces are appearing as weird characters in markdown files in the preview environment, while they render correctly in production.

The issue is caused by zero-width spaces that Docusaurus adds to links for proper display (related to facebook/docusaurus#5990)

• Production: .md files are served with text/markdown; charset=utf-8 from GitHub Pages, rendering Unicode characters correctly
• Preview: .md files are served with just text/markdown from S3, causing Unicode characters to display as ASCII, showing the zero-width spaces as visible weird characters

Impact

Affects preview PRs where markdown files display incorrectly
Does not affect production environment

Proposed Solutions

Quick fix: Implement a post-processing step that runs search & replace on built .md files to remove zero-width spaces
Comprehensive fix: Fix the issue in the plugin that generates the markdown files (https://github.com/signalwire/docusaurus-plugins)

References

Related Docusaurus issue: facebook/docusaurus#5990