Allow providing custom enable/disable callbacks to `usePreviewMode`

[adamdehaven]

Describe the feature

The current implementation of usePreviewMode automatically calls refreshNuxtData() when enabling preview mode, as well as binding a useRouter.afterEach(() => refreshNuxtData()) callback that fires on the next route change.

For apps that do not utilize SSG, or apps that desire custom enable/disable setup or cleanup tasks, the linked PR allows passing in two new callbacks to the composable's options.

I've submitted the functionality as a new PR: #28371

Additional information

• Would you be willing to help implement this feature?
• Could this feature be implemented as a module?

Final checks

• Read the contribution guide.
• Check existing discussions and issues.

[natamartinscodedev]

I'm a frontend but i would be help and learning more about nuxt

[danielroe]

resolved in #28371.