360 workflow implement workflow cron triggers frontend 2 (#10051)

as title, closes https://github.com/twentyhq/core-team-issues/issues/360

## Cron Setting behavior

https://github.com/user-attachments/assets/0de3a8b9-d899-4455-a945-20c7541c3053

## Cron running behavior


https://github.com/user-attachments/assets/4c33f167-857c-4fcb-9dbe-0f9b661c9e61

packages/twenty-front/src/modules/workflow/workflow-diagram/utils/generateWorkflowDiagram.ts

@@ -73,6 +73,14 @@ export const generateWorkflowDiagram = ({
 
         break;
       }
+      case 'CRON': {
+        triggerDefaultLabel = 'On a Schedule';
+        triggerIcon = getTriggerIcon({
+          type: 'CRON',
+        });
+
+        break;
+      }
       case 'DATABASE_EVENT': {
         const triggerEvent = splitWorkflowTriggerEventName(
           trigger.settings.eventName,