Change Drive GUI name from "Example GUI"

Forgot to change it when I imported my reusable class.

src/main/java/net/seanomik/energeticstorage/gui/ESDriveGUI.java

@@ -22,7 +22,7 @@ import java.util.*;
 
 public class ESDriveGUI implements InventoryHolder, Listener {
     private final Inventory globalInv;
-    private final String title = "Example GUI";
+    private final String title = "ES Drives";
 
     private Map<UUID, ESSystem> openSystems = new HashMap<>();