Add schedule fix mixin to neoforge

also fix old fabric compiling

fabric/src/main/java/com/seibel/distanthorizons/fabric/mixins/server/MixinLevelTicks.java

@@ -1,5 +1,25 @@
 package com.seibel.distanthorizons.fabric.mixins.server;
 
+
+#if MC_VER < MC_1_21_3
+
+import net.minecraft.world.entity.Entity;
+import org.spongepowered.asm.mixin.Mixin;
+
+/**
+ * {@link MixinUtilBackgroundThread} was used for versions before 1.21.3
+ * This is just a dummy class/mixin to make the compiler happy.
+ *
+ * @see MixinUtilBackgroundThread
+ */
+//@Mixin(net.minecraft.minecraft.class) // TODO we should allow version specific mixins so we don't have to create dummy mixins that exist for all MC versions
+@Mixin(Entity.class)
+public class MixinLevelTicks
+{
+	
+}
+#else
+
 import com.seibel.distanthorizons.common.wrappers.DependencySetupDoneCheck;
 
 import net.minecraft.world.ticks.LevelTicks;
@@ -20,7 +40,7 @@ public class MixinLevelTicks<T>
 	
 	
 	@Inject(method = "schedule", at = @At(value = "HEAD"), cancellable = true)
-	private void onChunkSave(ScheduledTick<T> tick, CallbackInfo ci)
+	private void schedule(ScheduledTick<T> tick, CallbackInfo ci)
 	{
 		// In MC 1.21.4 an error check was added to log attempting to schedule ticks for unloaded chunks
 		// this caused a lot of unnecessary errors when generating sand (FallingBlock.class).
@@ -31,3 +51,4 @@ public class MixinLevelTicks<T>
 	}
 	
 }
+#endif