Fix storybook tests (#6150)

The PRs merged on Friday introduced regressions on our storybook tests
suite

packages/twenty-front/src/modules/object-metadata/utils/getObjectSlug.ts

@@ -3,5 +3,5 @@ import toKebabCase from 'lodash.kebabcase';
 import { ObjectMetadataItem } from '../types/ObjectMetadataItem';
 
 export const getObjectSlug = (
-  objectMetadataItem: Pick<ObjectMetadataItem, 'labelPlural'>,
-) => toKebabCase(objectMetadataItem.labelPlural);
+  objectMetadataItem: Pick<ObjectMetadataItem, 'namePlural'>,
+) => toKebabCase(objectMetadataItem.namePlural);