This commit addresses serveral bugs within the audio service where OpenAL would fail to register the output device to the mapped engine.
- Increase null safety checks for all audio backends (cubeb, sdl2, openal)
- Added failsafe for Device selection
These ensure the audio_renderer can validate calls from the OpenAL engine, Credits to Hayate Yoshida for helping Identify the issue.
Credit: Hayate Yoshida <hayate_yoshida@citron-emu.org>
Signed-off-by: Zephyron <zephyron@citron-emu.org>