Prevent workflow right drawer flickering when selecting an action type (#8028)

In this PR:

- Use a stable id for create-step nodes; it makes it possible to
preserve their selected attribute and keep them open even after the flow
is re-generated
- Preemptively open the WorkflowStepEdit right drawer for the created
action



https://github.com/user-attachments/assets/c19e6820-e198-4d06-98ae-898bd6e53e33

Fixes https://github.com/twentyhq/private-issues/issues/123

packages/twenty-front/src/modules/workflow/utils/addCreateStepNodes.ts

@@ -16,7 +16,9 @@ export const addCreateStepNodes = ({ nodes, edges }: WorkflowDiagram) => {
 
   for (const node of nodesWithoutTargets) {
     const newCreateStepNode: WorkflowDiagramNode = {
-      id: v4(),
+      // FIXME: We need a stable id for create step nodes to be able to preserve their selected status.
+      // FIXME: In the future, we'll have conditions and loops. We'll have to set an id to each branch so we can have this stable id.
+      id: 'branch-1__create-step',
       type: 'create-step',
       data: {
         nodeType: 'create-step',