Fix missing Position input

Author: xenial

src/xenialdan/MagicWE2/clipboard/RevertClipboard.php

@@ -6,6 +6,7 @@
 
 use pocketmine\world\format\Chunk;
 use pocketmine\world\format\io\FastChunkSerializer;
+use pocketmine\world\Position;
 use pocketmine\world\World;
 
 class RevertClipboard extends Clipboard

src/xenialdan/MagicWE2/task/AsyncRevertTask.php

@@ -9,6 +9,7 @@
 use pocketmine\utils\AssumptionFailedError;
 use pocketmine\utils\TextFormat as TF;
 use pocketmine\uuid\UUID;
+use pocketmine\world\Position;
 use xenialdan\MagicWE2\clipboard\RevertClipboard;
 use xenialdan\MagicWE2\exception\SessionException;
 use xenialdan\MagicWE2\helper\AsyncChunkManager;