fix: update greeting message in RootHandler to remove test indication

Author: gitcommitankit

backend/handlers/root.go

@@ -13,7 +13,7 @@ type RootResponse struct {
 // RootHandler returns a simple greeting
 func RootHandler(w http.ResponseWriter, r *http.Request) {
 	response := RootResponse{
-		Message: "Hello from Four in a Row Server! (Test)",
+		Message: "Hello from Four in a Row Server!",
 	}
 
 	w.Header().Set("Content-Type", "application/json")