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/ui/input/components/internal/date/components/__stories__/DatePicker.stories.tsx

@@ -1,7 +1,6 @@
 import { Meta, StoryObj } from '@storybook/react';
 import { expect, userEvent, within } from '@storybook/test';
-
-import { ComponentDecorator } from '~/testing/decorators/ComponentDecorator';
+import { ComponentDecorator } from 'twenty-ui';
 
 import { InternalDatePicker } from '../InternalDatePicker';