quickfix model name

ui/app.py

@@ -19,7 +19,7 @@ from model_loader import ModelLoader
 class PlantDiseaseApp:
     def __init__(self):
         self.model_loader = ModelLoader()
-        self.current_modelName = "best_model"
+        self.current_modelName = "best_model.pth"
         self.model = self.model_loader.loadModel(self.current_modelName)
         self.flagged_predictions = []