Major Update: Hotel 188 Demo

I've updated the Hotel 188 demo with new improvements to make the experience even more immersive:

• Welcome room: A new starting area to introduce you to the mystery of the hotel.
• Ambient sounds: Relaxing water, plants rustling as you pass, and the constant hum of fluorescent lights create a more atmospheric experience.
• Optimization: Better performance for a smoother experience.

 Your feedback is key to improving the game.