Initialize calc_toggle in session state if not present in app.py

- Added a check to initialize 'calc_toggle' in session state only if it is not already set, improving session state management and ensuring consistent behavior during user interactions.

app.py

@@ -18,7 +18,8 @@ from global_func.load_csv import load_csv
 from global_func.find_csv_mismatches import find_csv_mismatches
 
 player_exposure_format = {'Exposure Overall': '{:.2%}', 'Exposure Top 1%': '{:.2%}', 'Exposure Top 5%': '{:.2%}', 'Exposure Top 10%': '{:.2%}', 'Exposure Top 20%': '{:.2%}'}
-st.session_state['calc_toggle'] = False
+if 'calc_toggle' not in st.session_state:
+    st.session_state['calc_toggle'] = False
 
 tab1, tab2 = st.tabs(["Data Load", "Contest Analysis"])
 with tab1:
@@ -121,7 +122,6 @@ with tab2:
                         # Apply entry name filter if specific entries are selected
                         if entry_parse_var == 'Specific' and entry_names:
                             working_df = working_df[working_df['BaseName'].isin(entry_names)]
-                            st.session_state['calc_toggle'] = True
 
         if type_var == 'Classic':
             working_df['stack'] = working_df.apply(