* feat: Add mermaidjs integration (#3523)
* Add mermaidjs to dependencies and CodeFenceNode
* Fix diagram id for mermaidjs diagrams
* Fix typescript compiler errors on mermaid integration
* Fix id generation for mermaid diagrams
* Refactor mermaidjs integration into prosemirror plugin
* Remove unnecessary class attribute in mermaidjs integration
* Change mermaidjs label to singular
* Change decorator.inline to decorator.node for mermaid diagram id
* Fix diagram toggle state
* Add border and background to mermaid diagrams
* Stop mermaidjs from overwriting fontFamily inside diagrams
* Add stable diagramId to mermaid diagrams
* Separate text for hide/show diagram
Use uuid as diagramId, avoid storing in state
Fix cursor on diagrams
* fix: Base diagram visibility off presence of source
* fix: More cases where our font-family is ignored
* Disable HTML labels
* fix: Button styling – not technically required but now we have a third button this felt all the more needed
closes#3116
* named chunks
* Upgrade mermaid 9.1.3
Co-authored-by: Jan Niklas Richter <5812215+ArcticXWolf@users.noreply.github.com>
