Expandable MermaidJS diagrams (click-to-enlarge / fullscreen view)

Description

Currently, MermaidJS diagrams embedded in Outline render well, but they often appear quite small within the text. This makes it harder to read complex diagrams or share them during discussions.

Suggestion

It would be very useful if MermaidJS diagrams could behave like images:
• When clicking on a diagram, it could open in a larger view (e.g., fullscreen pop-up / lightbox).
• This would allow users to explore the details of the diagram more comfortably without leaving the documentation context.

Benefits

• Improves readability for complex diagrams.
• Provides a better user experience, especially when sharing docs with non-technical users.
• Aligns with common UX patterns (click-to-enlarge images).

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Thank you for considering this enhancement!