Initial Release

• Added recursive chain block removal with configurable tick delay.
• Three modes: NORMAL, WHITELIST, and SELECT.
• Whitelist system for allowed block types.
• Replace-with list: removed blocks can be replaced with random blocks from a configurable list.
• Full in-game GUI for managing modes, whitelist, and replace-with list.
• All features are configurable via commands and config.yml.
• Tab completion for all commands.
• Permission system (chainblockremover.use).
• Support for Minecraft 1.20 and 1.21 (Spigot/Paper).