ボリュームが０のときサウンドを鳴らさないように

src/client/init.ts

@@ -190,6 +190,7 @@ os.init(async () => {
 				(vm as any).focus();
 			},
 			sound(type: string) {
+				if (this.$store.state.device.sfxVolume === 0) return;
 				const sound = this.$store.state.device['sfx' + type.substr(0, 1).toUpperCase() + type.substr(1)];
 				if (sound == null) return;
 				const audio = new Audio(`/assets/sounds/${sound}.mp3`);