Update 0.5.31

- Fixed a bug that shopkeepers did not attack when stealing from a store in safe exploration mode.
- Improved to be able to lock on to all enemies.
(On/Off by pushing in the right analog stick, toggled by left/right input.)
- Changed the color of enemy HP.
- Fixed the appearance of service tickets in the old castle monster house even in free mode.
- Added a setting to slow down when selecting items.
- Bug fixes