Fix incompatibility with Lightweight / Nemo's Inventory Sorting mods

Fixes FabricMC/fabric-api#4344
Fixes https://wurstforum.net/d/972

Author: Alexander01998

src/main/java/net/wurstclient/mixin/GenericContainerScreenMixin.java

@@ -44,7 +44,7 @@ public GenericContainerScreenMixin(WurstClient wurst,
 	}
 
 	@Override
-	protected void init()
+	public void init()
 	{
 		super.init();
 

src/main/java/net/wurstclient/mixin/ShulkerBoxScreenMixin.java

@@ -37,7 +37,7 @@ private ShulkerBoxScreenMixin(WurstClient wurst,
 	}
 
 	@Override
-	protected void init()
+	public void init()
 	{
 		super.init();