Most of the code has been optimized, thanks @Olzie-12

The command "/spawnershutdown" previously displayed a reload message even if the plugin was not actually reloaded. However, now it will not display any message unless the full command "/spawnershutdown reload" is used.

Fixed a bug where the spawner would not give the correct value and would return pig if a player was in survival mode.

There was some unused code that I used while testing the plugin, it is now removed.