Autoselect the first game in the app list (if not empty)

[henryfa2]

Changes proposed in this pull request:

• Autoselect the first game in the app list (if not empty)

[henryfa2]

Tests done :

• Loading the app list
• Starting the first app in the list / another one
• Leaving the running app (with 4 button gamepad combo) and starting the same / another one
• 'Quit app' button then starting another app

[OneLiberty]

Thanks for the PR !
I was trying to do something like this, but selecting the last launched game instead of the first one, what do you think about it ?

[henryfa2]

Well, I think it kinda depends on how the user uses the application.
To me, what you propose would be a good change since I launch only 1 app (Playnite) on Moonlight.
But for someone else that launches 30 differents apps, I dunno if that would be a good change.
And if you do that, you'll have to deal with the case where the user starts an app on Moonlight and decide to remove it later => you need a default case to select nothing (or first app?) if the app is removed from the app list

[LeGeRyChEeSe]

Nice feature ! Please add this