fix: Updated Button states for pages and minor UI fix (#6812)

## Description

#6811 

- Deleted button lacked `accent danger` on options menu
- Customize fields `onhover` lacked width to cover entire div tag
- Deactivate button lacked variant

## After

<img width="305" alt="Screenshot 2024-08-31 at 1 43 29 AM"
src="https://github.com/user-attachments/assets/82852227-e7d2-4327-a8cc-8f9f0e84f488">

<img width="229" alt="Screenshot 2024-08-31 at 1 09 31 AM"
src="https://github.com/user-attachments/assets/4783dd5a-a8ab-41b5-83d5-95425b6bebc4">
<img width="163" alt="Screenshot 2024-08-31 at 1 07 49 AM"
src="https://github.com/user-attachments/assets/33ec9928-6463-4797-bfc4-b40a927ec8ec">

---------

Co-authored-by: Charles Bochet <charles@twenty.com>

packages/twenty-front/src/modules/ui/navigation/menu-item/internals/components/StyledMenuItemBase.tsx

@@ -143,7 +143,7 @@ export const StyledHoverableMenuItemBase = styled(StyledMenuItemBase)<{
       case 'not-allowed':
         return 'not-allowed';
       default:
-        return 'default';
+        return 'pointer';
     }
   }};
 `;