feat: Add lockChat functionality to FlowStore

This commit adds the lockChat functionality to the FlowStore in order to control the chat lock state. The  method is implemented to update the  state variable. This feature enhances the user experience by allowing the chat to be locked or unlocked as needed.

src/frontend/src/stores/flowStore.ts

@@ -43,6 +43,10 @@ import useFlowsManagerStore from "./flowsManagerStore";
 // this is our useStore hook that we can use in our components to get parts of the store and call actions
 const useFlowStore = create<FlowStoreType>((set, get) => ({
   onFlowPage: false,
+  lockChat: false,
+  setLockChat: (lockChat) => {
+    set({ lockChat });
+  },
   setOnFlowPage: (FlowPage) => set({ onFlowPage: FlowPage }),
   flowState: undefined,
   flowBuildStatus: {},

src/frontend/src/types/zustand/flow/index.ts

@@ -161,4 +161,6 @@ export type FlowStoreType = {
     buildId?: string,
   ) => void;
   getNodePosition: (nodeId: string) => { x: number; y: number };
+  setLockChat: (lock: boolean) => void;
+  lockChat: boolean;
 };