Editor updates

[ethanpalm]

Documentation changes

New version of the editor and make the conceptual info more useful

Closes https://linear.app/mintlify/issue/DOC-356/proj-stable-editor

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For Reviewers

When reviewing documentation PRs, please consider:

✅ Technical accuracy

• Code examples work as written
• Commands and configurations are correct
• Links resolve to the right destinations
• Prerequisites and requirements are accurate

✅ Clarity and completeness

• Instructions are clear and easy to follow
• Steps are in logical order
• Nothing important is missing
• Examples help illustrate the concepts

✅ User experience

• A new user could follow these docs successfully
• Common gotchas or edge cases are addressed
• Error messages or troubleshooting guidance is helpful

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Note

Low Risk
Docs-only restructure and copy updates (navigation, redirects, and MDX content) with no product code changes; main risk is broken/incorrect links or mismatched expectations about editor behavior.

Overview
Updates the documentation IA and content for the new Mintlify editor: renames the nav group to Editor (tagged New), replaces older pages with a new editor/tutorial and a comprehensive editor/branching-and-publishing guide, and refreshes existing editor pages to emphasize autosave, real-time collaboration, Git sync, and diff-based review.

Adds editor-classic.mdx describing the legacy web editor and its May 7, 2026 deprecation, removes the old editor/publish.mdx and editor/media.mdx pages (folding relevant guidance into editor/pages.mdx), and updates redirects.json so legacy editor URLs land on the new docs. Also adds a note to create/reusable-snippets.mdx clarifying snippets aren’t supported in the web editor.

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