[Preview] LaunchPad adjustement about Single Types
## Bug report

### Required System information


CE

### Describe the bug

Some entrie’s preview button are leading to the homepage. For example, if I’m in the product single type and that I click the preview button, I will see the homepage. However, a product page exists on the frontend.

### Steps to reproduce the behavior

1. Use LauchPad to test Preview feature
2. Go to the product single type
3. Click the preview button
4. See the homepage

### Expected behavior

The right page should be displayed (Product preview)

### Screenshots

https://github.com/user-attachments/assets/1f9bb2ee-d6de-4877-8165-a9c113db0168



