Steps to reproduce the bug:
- Install the "Surveys" application.
- Go to the "Website" application.
- Go in the page manager ("Site" > "Pages").
- Select a page (typically "Home").
- Try to delete it.
- Error of type "'survey.survey' object has no attributes 'name'".
The error comes from the fact that records do not necessarily have the
attribute called "name". To fix this error, this commit uses
"display_name" that is defined in all models.
task-3082345
opw-3100483
opw-3111671
X-original-commit: d5aa5d7ebf9cd17a6df054252a1313ec8b85e83e
Part-of: odoo/odoo#109329
