expand mermaid diagrams like we can with pictures

Is your feature request related to a problem? Please describe. A clear and concise description of what the problem is. Ex. I'm always frustrated when [...]

it's good to expand the diagram for better legibility, especially when it's a content heavy diagram

Describe the solution you'd like A clear and concise description of what you want to happen.

expand button like in pictures

Describe alternatives you've considered A clear and concise description of any alternative solutions or features you've considered.

Additional context Add any other context or screenshots about the feature request here.

example of a heavy diagram https://actix.rs/docs/http_server_init