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/hooks/useCreateStep.ts

@@ -1,8 +1,11 @@
 import { CoreObjectNameSingular } from '@/object-metadata/types/CoreObjectNameSingular';
 import { useUpdateOneRecord } from '@/object-record/hooks/useUpdateOneRecord';
+import { useRightDrawer } from '@/ui/layout/right-drawer/hooks/useRightDrawer';
+import { RightDrawerPages } from '@/ui/layout/right-drawer/types/RightDrawerPages';
 import { useCreateNewWorkflowVersion } from '@/workflow/hooks/useCreateNewWorkflowVersion';
 import { workflowCreateStepFromParentStepIdState } from '@/workflow/states/workflowCreateStepFromParentStepIdState';
 import { workflowDiagramTriggerNodeSelectionState } from '@/workflow/states/workflowDiagramTriggerNodeSelectionState';
+import { workflowSelectedNodeState } from '@/workflow/states/workflowSelectedNodeState';
 import {
   WorkflowStep,
   WorkflowStepType,
@@ -19,6 +22,9 @@ export const useCreateStep = ({
 }: {
   workflow: WorkflowWithCurrentVersion;
 }) => {
+  const { openRightDrawer } = useRightDrawer();
+  const setWorkflowSelectedNode = useSetRecoilState(workflowSelectedNodeState);
+
   const workflowCreateStepFromParentStepId = useRecoilValue(
     workflowCreateStepFromParentStepIdState,
   );
@@ -84,6 +90,9 @@ export const useCreateStep = ({
       nodeToAdd: newStep,
     });
 
+    setWorkflowSelectedNode(newStep.id);
+    openRightDrawer(RightDrawerPages.WorkflowStepEdit);
+
     /**
      * After the step has been created, select it.
      * As the `insertNodeAndSave` function mutates the cached workflow before resolving,