Only display Flow for Workflow Runs and display Output tab for triggers (#11520)

> [!WARNING]
> I refactored a bunch of components into utility functions to make it
possible to display the `WorkflowStepHeader` component for **triggers**
in the `CommandMenuWorkflowRunViewStep` component. Previously, we were
asserting that we were displaying the header in `Output` and `Input`
tabs only for **actions**. Handling triggers too required a bunch of
changes. We can think of making a bigger refactor of this part.

In this PR:

- Only display the Flow for Workflow Runs; removed the Code Editor tab
- Allows users to see the Output of trigger nodes
- Prevent impossible states by manually setting the selected tab when
selecting a node

## Demo

### Success, Running and Not Executed steps


https://github.com/user-attachments/assets/c6bebd0f-5da2-4ccc-aef2-d9890eafa59a

### Failed step


https://github.com/user-attachments/assets/e1f4e13a-2f5e-4792-a089-928e4d6b1ac0

Closes https://github.com/twentyhq/core-team-issues/issues/709

packages/twenty-front/src/modules/workflow/validation-schemas/workflowSchema.ts

@@ -233,7 +233,7 @@ export const workflowTriggerSchema = z.discriminatedUnion('type', [
 ]);
 
 // Step output schemas
-const workflowExecutorOutputSchema = z.object({
+export const workflowExecutorOutputSchema = z.object({
   result: z.any().optional(),
   error: z.string().optional(),
   pendingEvent: z.boolean().optional(),