Makes QI more of a static class

frontend/core/src/com/gameware/game/QueryIntermediate.java

@@ -31,13 +31,15 @@ import java.util.Map;
 import java.util.NoSuchElementException;
 import java.util.TimeZone;
 
-public class QueryIntermediate {
+public final class QueryIntermediate {
     /*
         QueryIntermediate works as connector between frontend and backend. It takes care of all
         communications and requests with backend.
 
      */
 
+    private QueryIntermediate(){}
+
     private static String baseUrl = GameWare.apiBaseUrl;
 
     private static Json json = new Json();