feat: fetch flow (#1068)

### What problem does this PR solve?
feat: fetch flow #918 
feat: save graph

### Type of change


- [x] New Feature (non-breaking change which adds functionality)

web/src/pages/flow/store.ts

@@ -17,9 +17,6 @@ import {
 import { create } from 'zustand';
 import { devtools } from 'zustand/middleware';
 import { NodeData } from './interface';
-import { dsl } from './mock';
-
-const { nodes: initialNodes, edges: initialEdges } = dsl.graph;
 
 export type RFState = {
   nodes: Node<NodeData>[];
@@ -41,8 +38,8 @@ export type RFState = {
 // this is our useStore hook that we can use in our components to get parts of the store and call actions
 const useStore = create<RFState>()(
   devtools((set, get) => ({
-    nodes: initialNodes as Node[],
-    edges: initialEdges as Edge[],
+    nodes: [] as Node[],
+    edges: [] as Edge[],
     selectedNodeIds: [],
     selectedEdgeIds: [],
     onNodesChange: (changes: NodeChange[]) => {