fix: bgm loop

assets/_Game/Scripts/Manager/SoundManager.ts

@@ -67,7 +67,7 @@ export class SoundManager extends Singleton<SoundManager>('SoundManager') {
         this._audioSourceBgm = new globalThis.Howl({
             src: audio.nativeUrl,
             volume: opts?.volume || 1,
-            loop: !!opts?.loop,
+            loop: opts?.loop || true,
             rate: opts?.rate || 1,
             mute: this._isMute,
         });