`PageModel` uses wrapping serialization mode if no `SpringDataWebSettings` found

[odrotbohm]

While we kind of assume the Spring Data web support primarily being activated through @EnableSpringDataWebSupport, PageModel erroneously uses the wrapping model if no SpringDataWebSettings is found. For backwards compatibility reasons, it should use the legacy direct rendering mode.

References

• Provide means to render simplified JSON representations of PageImpl easily #3024
• Spring Boot 3.3 upgrade causes serialization loss of DatastorePageable.urlSafeCursor GoogleCloudPlatform/spring-cloud-gcp#2940