Outdated IDs for monster spawner and minecart with monster spawner

Despite the name change, the item/block ID for monster spawner and the entity ID for minecart with monster spawner haven't been updated.

Current IDs:

• Monster Spawner: spawner
• Minecart with Monster Spawner: spawner_minecart

Expected IDs:

• Monster Spawner: monster_spawner
• Minecart with Monster Spawner: monster_spawner_minecart