Update ch23.xml (#190)
* Update ch23.xml
낸시 쨩 안돼ㅐㅐㅐㅐㅐㅐ
* Preload audio
* Add af 2 cg and sound
* Temp commit to review new cg and sound
* Fix initial chapter select bug
* Revise ae ch23 kr translation
Co-authored-by: Sakura Knoll <s4kura.knoll@gmail.com>