Fix ParticipantChip and stories imports (#4974)

- Fix ParticipantChip
- Fix stories imports after some component have been moved to twenty UI

packages/twenty-front/src/modules/settings/data-model/components/__stories__/SettingsObjectFieldFormSection.stories.tsx

@@ -1,6 +1,5 @@
 import { Meta, StoryObj } from '@storybook/react';
-
-import { ComponentDecorator } from '~/testing/decorators/ComponentDecorator';
+import { ComponentDecorator } from 'twenty-ui';
 
 import { SettingsObjectFieldFormSection } from '../SettingsObjectFieldFormSection';