Added an empty gui for the party button to go into, fixed vanilla top button not aligning correctly all the time when clicked.

src/main/java/tconstruct/client/tabs/InventoryTabVanilla.java

@@ -10,7 +10,18 @@ public class InventoryTabVanilla extends AbstractTab {
 
 	@Override
 	public void onTabClicked() {
-		TabRegistry.openInventoryGui();
+		Thread t = new Thread(){
+			@Override
+			public void run(){
+				try {
+					Thread.sleep(100);
+				} catch (InterruptedException e) {
+					e.printStackTrace();
+				}
+				TabRegistry.openInventoryGui();
+			}
+		};
+		t.start();
 	}
 
 	@Override