Reworked the tavern with improved save

Fixed some bugs and optimized the difficulty curve.

1. Reworked the tavern look and spawn logic
   
   
2. Remove the lock lock restriction on the key of the treasure chest
   
   
3. Reduced ghost count, but increased health
   
   
4. Fix archive exception after 10
   
   
5. Reduce the probability of magma fractures and the temperature of fireball