Added PC and mac version, etc.

Thank you for playing.

• Added PC and mac version 💻🖥 (fullscreen support🎉)
• Restricted ghost from entering shrines 👻⛔️⛩ (It’s as originally planned🙇‍♀️🙇‍♂️)
• Increased visibility: adjusted some sprite’s and background color
• Added ghost's sleep motion
• Adjusted fox image on title screen (Cute?🦊)
• Adjusted some levels (Made “13. double lock” difficult👹)
• Changed some flog’s words (I'm studying English🤤)
• Added operation: back to title screen from stage select screen by ESC key
• Fixed some other minor bugs