disable generate predictions button when there are no new inputs

ProtHGT_app.py

@@ -223,8 +223,8 @@ with st.sidebar:
             st.session_state.previous_inputs = current_inputs
         
         # Add a button to trigger predictions - disabled if already submitted with current inputs
-        button_disabled = st.session_state.submitted and st.session_state.previous_inputs == current_inputs
-        if st.button("Generate Predictions", disabled=button_disabled):
+        button_disabled = st.session_state.submitted
+        if st.button("Generate Predictions", disabled=button_disabled, key="generate_predictions"):
             st.session_state.submitted = True
 
 if st.session_state.submitted: