Death Swap v3.0

• Modified and compatible with 1.21.4
• Modify the setting interface to support more pages, functions and settings
• Modify score calculation rules
• Modify some text and translation
• Added additional prompt text
• Added swap time setting
• Added swap countdown progress bar
• Added inventory limit
• Added new killer mode
• Added new arena
• New settlement interface at the end of the game (playing time, number of exchanges and killers)
• The game will be automatically restarted after 15 seconds after the game ends.
• Optimization function
• Detailed adjustments
• Fix known issues