[FEATURE]: Live view for Mermaid diagrams

[jaygz316]

Describe the feature you'd like to see

Thank you for adding mermaid.js. The functionality would be greatly improved if it had a Live view feature where it updates as the user types, that way we can see if we are breaking a diagram in real-time. For us that are not Mermaid experts, it's a lot of trial and error and we can see the changes until we hit save or preview.

Thank you

Wireframes or mockups (optional)

No response

Checklist

• I have searched across other issues to make sure this has not been already suggested.
• I understand this request may be declined if it is not in line with the project's goals.

[fccview]

Hey!
Bit of a tough one, I'll see what I can do ♥️