Migrate Carpet Mixin names to mojang mappings

src/main/java/carpet/mixins/ItemEntityMixin.java

@@ -34,7 +34,7 @@ public abstract class ItemEntityMixin extends Entity implements ItemEntityInterf
     @Override
     public void thunderHit(ServerLevel world, LightningBolt lightning) {
         if (CarpetSettings.lightningKillsDropsFix) {
-            if (this.age > 8) { //Only kill item if its older then 8 ticks
+            if (this.age > 8) { //Only kill item if it's older than 8 ticks
                 super.thunderHit(world, lightning);
             }
         } else {