docs: Fixing Android TV code snippet

Changing code snippet to use FullWidthDetailsOverviewRowPresenter
instead of DetailsOverviewRowPresenter (which is deprecated).
Verified code snippet change by checking and building it in
Android Studio using an unrelated sample.

Bug: 25666843
Change-Id: I6db32a570757b7f8f1f848f7579b29617ffb18d6