fix: fix syntax error

[kagol]

PR

PR Checklist

Please check if your PR fulfills the following requirements:

• The commit message follows our Commit Message Guidelines
• Tests for the changes have been added (for bug fixes / features)
• Docs have been added / updated (for bug fixes / features)

PR Type

What kind of change does this PR introduce?

• Bugfix
• Feature
• Code style update (formatting, local variables)
• Refactoring (no functional changes, no api changes)
• Build related changes
• CI related changes
• Documentation content changes
• Other... Please describe:

What is the current behavior?

Issue Number: N/A

What is the new behavior?

Does this PR introduce a breaking change?

• Yes
• No

Other information

Summary by CodeRabbit

• Documentation
  • Clarified code block highlighting requirements and configuration for the highlight.js plugin integration.
  • Updated demo showing proper highlight.js implementation for code syntax highlighting.

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[coderabbitai]

Caution

Review failed

The pull request is closed.

Walkthrough

A Vue demo file updates its syntax configuration to use an explicit hljs instance instead of a boolean flag, while accompanying documentation consolidates guidance on code block highlighting using highlight.js into a single, unified statement.

Changes

Cohort / File(s)	Summary
Highlight.js Configuration Updates packages/docs/fluent-editor/demos/custom-toolbar.vue	Changes editor syntax flag from true to { hljs } to explicitly pass the hljs instance for code highlighting
Documentation Consolidation packages/docs/fluent-editor/docs/demo/code-block-highlight.md	Merges multiple descriptive lines into a single statement clarifying that code block highlighting requires the highlight.js plugin passed to the syntax module's hljs option

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~3 minutes

Poem

🐰 With hljs now explicit and clear,
Configuration blooms throughout the year,
Docs distilled to essence pure—
Highlight syntax, bright and sure! ✨

✨ Finishing touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Post copyable unit tests in a comment
• Commit unit tests in branch kagol/fix-syntax-error

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