Crash when navigating to a scroller on Home if the previously-selected index no longer exists

[ryandavidmercado]

To reproduce:

1. Scroll down to Recommendations; select the last element in the list. Note the number of elements in the list.
2. Scroll up to Recently Played
3. Launch any game from the list to re-generate Recommendations
4. Use B to navigate back to Home
5. If Recommendations list is not shorter than it was when noted in Step 1, repeat steps 2-4 until the list is shorter
6. Scroll down to Recommendations
7. The app crashes immediately