feat: Enable cred setup for workflows created from templates (no-changelog) (#8240)

## Summary

Enable users to open credential setup for workflows that have been
created from templates if they skip it.

Next steps (will be their own PRs):
- Add telemetry events
- Add e2e test
- Hide the button when user sets up all the credentials
- Change the feature flag to a new one

## Related tickets and issues

https://linear.app/n8n/issue/ADO-1637/feature-support-template-credential-setup-for-http-request-nodes-that

packages/editor-ui/src/components/MainHeader/MainHeader.vue

@@ -154,7 +154,6 @@ export default defineComponent({
 							params: { name: routeWorkflowId },
 						});
 					}
-					// this.modalBus.emit('closeAll');
 					this.activeHeaderTab = MAIN_HEADER_TABS.EXECUTIONS;
 					break;
 				default: