[feat] Configurable autolaunch

[LukeShortCloud]

The behavior right now is:

• On boot, if a SD card was already inserted = Launch the game automatically
• After boot, if a SD card was not originally inserted but inserted later = A "Play" button appears that a user can select

A small quality-of-life improvement would allow that to be configurable (autolaunch or not) for both initial boot and in the "bios" app.

Bonus points if shutting down after closing a game could be easily configurable (I'd like to disable it for quickly testing various games, for changing games at LAN parties, view/manage save files, etc.).

[the-outcaster]

I tried to work on it yesterday with my fork, but ended up having too many issues.

That being said, I'll keep this idea on the backburner.

[LukeShortCloud]

Thanks for trying at least. :-)

[the-outcaster]

Done.