feat: Update Netlify previews to include the Diagram and the Dual Editor #525

Description

Investigate and update the Netlify Storybook preview to display the Diagram and Dual Editor instead of the standalone Diagram Editor, following the merge of PR #499.

Investigate options on how we should implement this. For example, implement an index.html page with link to both storybooks, merge both into one storybook etc. Keep in mind netlify quota limits.

Discuss options with team and implement

Motivation

The Dual Editor is now available, however Netlify still builds and publishes the standalone Diagram Editor Storybook.

Definition of Done

• Integration Tests: Verified within the monorepo and target environments (Web/VS Code).
• Documentation: Updated README.md, ADRs, or official docs.