Fixed a few bugs.

・The volume light would not turn off when the picture quality setting was "Low".

⇒This has been fixed by setting the default to Mideum as a temporary fix.

・The debug item (カードキーR) appeared.

⇒Removed debug items from the scene.

・Fixed a problem where the button icons at the start of the game were labeled as gamepad buttons even when the game was operated with the keyboard.