Pickaxe & Shovel 3x3

• Fixed 3×3 mining
• Added block effects
• Improved performance
• Update notifier added
• Added permissions system

Corrected mining logic → now breaks a full flat 3×3 horizontal area, preserving the Y-level.

Fixed bugs, improved 3x3 block breaking, and added update notifications for server owners.

The 3x3 Pickaxe and Shovel break blocks in a horizontal 3x3 area while preserving the Y-level for precise and efficient mining

Optimized for horizontal 3x3 mining only, preserving the (Y-Level ) of blocks.