[Fix] : Horizontal scroll issue in dropdown (#7682)

In this PR, I changed the hard-coded width value to a dynamic value
which will be calculated based on the parent container.

This PR closes issue: #7615

packages/twenty-front/src/modules/object-record/record-index/components/RecordIndexPageKanbanAddMenuItem.tsx

@@ -5,7 +5,7 @@ import styled from '@emotion/styled';
 import { Tag } from 'twenty-ui';
 
 const StyledMenuItem = styled(MenuItem)`
-  width: 200px;
+  width: calc(100% - 2 * var(--horizontal-padding));
 `;
 
 type RecordIndexPageKanbanAddMenuItemProps = {