PlayerDropItemEvent: updated documentation

this can be triggered by dropping an item outside of the inventory menu while the inventory window is open.

src/event/player/PlayerDropItemEvent.php

@@ -29,7 +29,7 @@ use pocketmine\item\Item;
 use pocketmine\player\Player;
 
 /**
- * Called when a player tries to drop an item from its hotbar
+ * Called when a player tries to drop an item
  */
 class PlayerDropItemEvent extends PlayerEvent implements Cancellable{
 	use CancellableTrait;