Why MovieDetailsAnimator is not injected as a @Singleton?

First of all, thank you so much for this awesome repository.

**I have a question about dependency injection:**
You inject MovieDetailsAnimator
`@Inject lateinit var movieDetailsAnimator: MovieDetailsAnimator`
at line 60, MovieDetailsFragment.kt.

And MovieDetailsAnimator is constructed through
`class MovieDetailsAnimator @Inject constructor()`

Wouldn't it be better if MovieDetailsAnimator was constructed with @Singleton annotation? Something like:
`@Singleton class MovieDetailsAnimator @Inject constructor()`
It seems like there is no point on getting a new instance of MovieDetailsAnimator for every fragment.

Thank you! 👍