Remove normal/undyed shulker boxes from My Items inventories.

Removes the first `_` in the `_SHULKER_BOX` matching to ensure that normal shulker boxes with ID `SHULKER_BOX` are removed from My Items as well.


Co-authored-by: Andreas Troelsen <garbagemule@gmail.com>

changelog.md

@@ -38,6 +38,7 @@ These changes will (most likely) be included in the next version.
 - Flaming arrows now ignite TNT blocks in the arena.
 - Players no longer take fall damage when they leave (or get removed from) an arena while falling.
 - Players no longer take damage from projectiles shot by pets of other players.
+- Normal shulker boxes are now properly removed from inventories of players using the My Items class.
 - MobArena no longer nags players with the `mobarena.admin.teleport` permission when they engage in a teleport that would have otherwise been blocked.
 - MobArena now correctly sets the source property on auto-ignited TNT.
 

src/main/java/com/garbagemule/MobArena/ArenaClass.java

@@ -295,7 +295,7 @@ public class ArenaClass
                 case SHULKER_SHELL:
                     return true;
             }
-            return type.name().endsWith("_SHULKER_BOX");
+            return type.name().endsWith("SHULKER_BOX");
         }
     }
 }