refactor(ts): export types

src/index.ts

@@ -7,3 +7,5 @@ export { default as EdgeText } from './components/Edges/EdgeText';
 export { MiniMap, Controls } from './plugins';
 
 export { isNode, isEdge, removeElements, addEdge, getOutgoers } from './utils/graph';
+
+export * from './types';