Version 1.1 - Immortality & Proximity Update

This update expands the plugin far beyond just death sounds and adds several major SMP-focused systems and quality-of-life improvements.

• Added a full immortality system for special players
• Added standalone /immortal management commands
• Added /immortal set, /immortal unset, /immortal toggle, /immortal list, and /immortal reload
• Added persistent immortality data so immortal players stay saved after restarts
• Added fatal damage protection for immortal players
• Added chat control modes: NORMAL, DISABLED, and PROXIMITY
• Added proximity chat support
• Added configurable death punishments with KICK and BAN
• Added configurable death sound range settings
• Added support for both . and _ death sound names
• Added reload support for applying config changes without restarting the server
• Updated the plugin to Java 21
• Updated compatibility for Paper 1.21.11
• Cleaned up deprecated sound API usage for better forward compatibility
• Reworked the plugin branding and release setup for UnstableSMPDeathSound
• Improved config