Update app.py

app.py

@@ -2,7 +2,7 @@ import sys
 tabpfn_path = 'TabPFN'
 sys.path.insert(0, tabpfn_path) # our submodule of the TabPFN repo (at 045c8400203ebd062346970b4f2c0ccda5a40618)
 from TabPFN.scripts.transformer_prediction_interface import TabPFNClassifier
-from DecisionBoundary import DecisionBoundaryDisplay
+from decision_boundary import DecisionBoundaryDisplay
 
 import numpy as np
 from pathlib import Path