Gathering Torches Become Sunlight

# Issues
- The gravestone cannot be re-summoned while the entity is still alive.
- Chests in Sargon structures have incorrect rotation.
- Fixed the config issue where the gravestone's damage cap could not be adjusted.

# Optimizations
- Increased the drop rate of war phantom.
- Added text descriptions to items such as the mercenary nameplate.
- Added a text description to the Fire And Steel.
- Added hints about hidden rooms to structures.

# Changes
- Gravestone health increased to 380.
- Added a config to adjust the life steal multiplier for the gravestone.
- Added a config to control whether the player loses half of its health, armor, and attack cap when gravestone  entering its second phase.
- Add a 1-second blood-sucking cooldown to the gravestone.