Merge branch 'develop' into sidv/splitDiagrams

* develop: (233 commits)
  style(docs): use `github-dark` hightlight theme
  refactor(docs): use default vitepress highlighter
  fix: Move redirection to router
  ci(renovate): disable pinning dependencies
  Revert "chore(deps): pin dependencies"
  change shiki getHighlighter import
  create separate spec for stateRenderer-v2
  diagramStates should not be global; pass it into functions; minor comment fixes
  diagramClasses no longer needs to be cached; mermaidAPI no longer calls it repeatedly
  (minor) import expectTypeOf in spec
  (minor) fix JSdoc tag
  + spec stateRenderer-v2.js getClasses() to verify it returns a {}
  (minor) fix JSdoc types in comments
  (minor) add comments, remove duplicated line
  chore: Add master to link checker
  chore: Add docs to redirect.ts
  stateDB classes must be a {} not []
  feat: Redirect old documentation links.
  add stateDiagram-v2 to list of graphs with classDefs
  fix(docs): ClassDiagram table
  ...

cypress/integration/rendering/stateDiagram-v2.spec.js

@@ -521,4 +521,42 @@ stateDiagram-v2
       { logLevel: 0, fontFamily: 'courier' }
     );
   });
+
+  describe('classDefs and applying classes', () => {
+    it('v2 states can have a class applied', () => {
+      imgSnapshotTest(
+        `
+          stateDiagram-v2
+          [*] --> A
+          A --> B: test({ foo#colon; 'far' })
+          B --> [*]
+            classDef badBadEvent fill:#f00,color:white,font-weight:bold
+            class B badBadEvent
+           `,
+        { logLevel: 0, fontFamily: 'courier' }
+      );
+    });
+    it('v2 can have multiple classes applied to multiple states', () => {
+      imgSnapshotTest(
+        `
+          stateDiagram-v2
+          classDef notMoving fill:white
+          classDef movement font-style:italic;
+          classDef badBadEvent fill:#f00,color:white,font-weight:bold
+
+          [*] --> Still
+          Still --> [*]
+          Still --> Moving
+          Moving --> Still
+          Moving --> Crash
+          Crash --> [*]
+
+          class Still notMoving
+          class Moving, Crash movement
+          class Crash badBadEvent
+        `,
+        { logLevel: 0, fontFamily: 'courier' }
+      );
+    });
+  });
 });