Update app.py

app.py

@@ -98,13 +98,13 @@ tab1, tab2, tab3 = st.tabs(["1-to-1 Heatwave Ablation Profile", "Direct Physical
 
 with tab1:
     fig_ab = "rigorous_ablation_heatwave_profile.png"
-    if fig_ab.exists():
+    if Path(fig_ab).exists():
         st.image(str(fig_ab))
 with tab2:
     fig_sw = "direct_physics_sweeps.png"
-    if fig_sw.exists():
+    if Path(fig_sw).exists():
         st.image(str(fig_sw))
 with tab3:
     fig_par = "surrogate_parity_plot.png"
-    if fig_par.exists():
+    if Path(fig_par).exists():
         st.image(str(fig_par))