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/settings/serverless-functions/graphql/queries/findManyAvailablePackages.ts

@@ -1,7 +1,7 @@
 import { gql } from '@apollo/client';
 
 export const FIND_MANY_AVAILABLE_PACKAGES = gql`
-  query FindManyAvailablePackages {
-    getAvailablePackages
+  query FindManyAvailablePackages($input: ServerlessFunctionIdInput!) {
+    getAvailablePackages(input: $input)
   }
 `;