Added test for divider alignment

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

@@ -588,6 +588,20 @@ title: simple state diagram
 stateDiagram-v2
 [*] --> State1
 State1 --> [*]
+`,
+      {}
+    );
+  });
+  it('should align dividers correctly', () => {
+    imgSnapshotTest(
+      `stateDiagram-v2
+  state s2 {
+      s3
+      --
+      s4
+      --
+      55
+  }
 `,
       {}
     );