[Optimization/Fix] (HQ) Audio Preview

[Calemy]

I noticed that the audio previews are loaded on the MapsetCard directly when generated.
That approach is good for pre-rendering but by far not optimized for traffic.

My suggestion is to only load "new Audio()" when the beatmap actually is being clicked to play to avoid unnecessary traffic.
With this High Quality previews by catboy.best should also work without any issues.