Update column layout in app.py for improved UI spacing

- Adjusted the column distribution for the submit and reset buttons to enhance the visual layout, providing a more balanced user interface.
- Added logic to clear session state variables related to player selection upon reset, ensuring a clean slate for user interactions.

app.py

@@ -251,7 +251,7 @@ with tab2:
                     unique_players = [p for p in unique_players if p != 'nan']  # Remove any NaN values
                     player_parse_var = st.selectbox("Do you want to view lineups with specific player(s)?", ['All', 'Specific'], key = 'player_parse_var')
                     player_names = st.multiselect("Select players", options=unique_players, default=[], key = 'player_names')
-                submit_col, reset_col, blank_col = st.columns([1, 1, 8])
+                submit_col, reset_col, blank_col = st.columns([1, 1, 12])
                 with submit_col:
                     submitted = st.form_submit_button("Submit")
                 with reset_col:
@@ -267,6 +267,9 @@ with tab2:
                         stack_parse_var = 'All'
                         stack_size_parse_var = 'All'
                         entry_parse_var = 'All'
+                        for each_var in [entry_names, stack_names, stack_size_names, player_names]:
+                            if each_var in st.session_state:
+                                del st.session_state[each_var]
                 
                 if submitted:
                     if 'player_frame' in st.session_state: