8723 workflow add editor in serverless function code step (#8805)

- create a serverless function when creating a new workflow code step
- add code editor in workflow code step
- move workflowVersion steps management from frontend to backend
  - add a custom resolver for workflow-version management
  - fix optimistic rendering on frontend
- fix css
- delete serverless function when deleting workflow code step

TODO
- Don't update serverlessFunction if no code change
- Factorize what can be between crud trigger and crud step
- Publish serverless version when activating workflow
- delete serverless functions when deleting workflow or workflowVersion
- fix optimistic rendering for code updates
- Unify CRUD types

<img width="1279" alt="image"
src="https://github.com/user-attachments/assets/3d97ee9f-4b96-4abc-9d36-5c0280058be4">

packages/twenty-front/src/modules/workflow/components/WorkflowDiagramStepNodeEditable.tsx

@@ -1,5 +1,5 @@
 import { WorkflowDiagramStepNodeBase } from '@/workflow/components/WorkflowDiagramStepNodeBase';
-import { useDeleteOneStep } from '@/workflow/hooks/useDeleteOneStep';
+import { useDeleteStep } from '@/workflow/hooks/useDeleteStep';
 import { useWorkflowWithCurrentVersion } from '@/workflow/hooks/useWorkflowWithCurrentVersion';
 import { workflowIdState } from '@/workflow/states/workflowIdState';
 import { WorkflowDiagramStepNodeData } from '@/workflow/types/WorkflowDiagram';
@@ -21,9 +21,8 @@ export const WorkflowDiagramStepNodeEditable = ({
   const workflowWithCurrentVersion = useWorkflowWithCurrentVersion(workflowId);
   assertWorkflowWithCurrentVersionIsDefined(workflowWithCurrentVersion);
 
-  const { deleteOneStep } = useDeleteOneStep({
+  const { deleteStep } = useDeleteStep({
     workflow: workflowWithCurrentVersion,
-    stepId: id,
   });
 
   return (
@@ -35,7 +34,7 @@ export const WorkflowDiagramStepNodeEditable = ({
             size="medium"
             Icon={IconTrash}
             onClick={() => {
-              return deleteOneStep();
+              deleteStep(id);
             }}
           />
         ) : undefined