Refacto workflow folders (#9302)

- Create separated folders for sections
- Add components
- Add utils and clean old ones
- Add constants
- Rename search variables folder and components

Next steps:
- clean hooks
- clean states

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

@@ -1,5 +1,5 @@
-import { TRIGGER_STEP_ID } from '@/workflow/constants/TriggerStepId';
 import { WorkflowStep } from '@/workflow/types/Workflow';
+import { TRIGGER_STEP_ID } from '@/workflow/workflow-trigger/constants/TriggerStepId';
 import { isDefined } from 'twenty-ui';
 
 /**