ClearDrop

### Added

- **Boolean Toggles:** Added support for `true`/`false` arguments in commands to easily toggle notifications.

  - `/cleardrop auto <min> <true/false>`

  - `/cleardrop notice <sec> <true/false>`

  - `/cleardrop cleanupfinished <true/false>`

- **Help Menu:** Updated help menu to include the new `cleanupfinished` command and correct usage examples.

### Changed

- **Command Rename:** Renamed the main command from `/clear` to `/cleardrop` to avoid conflicts with vanilla or other plugin commands.

- **Cleanup Logic:** Enforced strict logic that only removes entities with a `DespawnComponent` that are *not* in the exclusion list.