refactor: make sure that the droppable styles are kept, update some nodes to reflect their used functionality.

ref: N25B-294

src/pages/VisProgPage/visualProgrammingUI/VisProgStores.tsx

@@ -114,7 +114,7 @@ const useFlowStore = create<FlowState>((set, get) => ({
     set({
       nodes: get().nodes.map((node) => {
         if (node.id === nodeId) {
-          node.data = { ...node.data, ...data };
+          node = { ...node, data: { ...node.data, ...data }};
         }
         return node;
       }),