AudioBuffer: Don't force HTML5 audio when using fromBytes()/fromBase64()

[ACrazyTown]

Previously, all AudioBuffer methods except for fromBytes() and fromBase64() defaulted to using Web Audio, with an optional flag to force HTML5 Audio.

I've done the same here but also set the preload flag to true because:

• Sounds that have preload set to false are required to call load() on the Howl instance. See: https://github.com/goldfire/howler.js?tab=readme-ov-file#load.
  I believe the reason why it worked before without calling howl.load() is due to a difference with how HTML5 Audio and Web Audio works.
• IMO it makes sense that a sound from already loaded bytes is loaded and ready to play.