Fixed minor changes

app.py

@@ -56,8 +56,8 @@ def predict_image(image, model_name: str, size=(244, 244)) -> List[Tuple[str, st
     maltese_categories = categories[model_name]["maltese"]
     sorted_predictions = [
         (
-            english_categories[i],
-            maltese_categories[i],
+            english_categories[str(i)],
+            maltese_categories[str(i)],
             round(pred_probs[i] * 100, 2)  # Convert to percentage
         )
         for i in sorted_indices