feat(flow): Add event listener to vueflow object

* event listener also exist in store state (hooksOn)
* add applyChangesHandlers to vueflow object, can be used to apply changes i.e. deleting etc.

Signed-off-by: Braks <78412429+bcakmakoglu@users.noreply.github.com>

src/composables/useVueFlow.ts

@@ -96,6 +96,8 @@ export default (options?: FlowOptions): UseVueFlow => {
   const store = useStore(options)
   return {
     store,
-    hooks: store.hooks,
+    applyNodeChanges: (changes) => applyNodeChanges(changes, store.nodes),
+    applyEdgeChanges: (changes) => applyEdgeChanges(changes, store.edges),
+    ...store.hooksOn,
   }
 }