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/hooks/useCreateNewWorkflowVersion.ts

@@ -8,13 +8,13 @@ export const useCreateNewWorkflowVersion = () => {
       objectNameSingular: CoreObjectNameSingular.WorkflowVersion,
     });
 
-  const createNewWorkflowVersion = (
+  const createNewWorkflowVersion = async (
     workflowVersionData: Pick<
       WorkflowVersion,
       'workflowId' | 'name' | 'status' | 'trigger' | 'steps'
     >,
   ) => {
-    return createOneWorkflowVersion(workflowVersionData);
+    return await createOneWorkflowVersion(workflowVersionData);
   };
 
   return {