v3.0.0 for mc 1.20.1 (Not working correctly)

Added

• New raccooncore_version property in build.gradle

Changed

• Updated VanishMod and RaccoonCore version/range entries in gradle.properties
• Refactored SelectiveVanishCommand to remove the internal getPlayers helper
• Now uses PlayerListArgument#getPlayerList or EntityArgument#getPlayers directly for clearer player argument handling
  • I mean, the new PlayerListArgument#getPlayerList from RaccoonCore 2.0.0
• Removed unused imports and simplified command structure