Refactor app.py to reorganize the layout of the "Load/Reset Data" button and the view selection form, enhancing user interface structure and improving data loading functionality. Introduce a form for site selection to streamline user interactions.

app.py

@@ -118,25 +118,28 @@ def convert_df(array):
     array = pd.DataFrame(array, columns=column_names)
     return array.to_csv().encode('utf-8')
 
-with st.container():
-    col1, col2, col3 = st.columns([3, 3, 3])
-    with col1:
-        view_var = st.selectbox("Select view", ["Simple", "Advanced"], key='view_var')
-    with col2:
-        site_var = st.selectbox("What site do you want to view?", ('Draftkings', 'Fanduel'), key='site_var')
-    with col3:
-        container = st.container()
-        with container:
-            col = st.columns(3)[2]  # Create 3 columns and use middle one
-            with col:
-                if st.button("Load/Reset Data", key='reset'):
-                    st.cache_data.clear()
-                    roo_data, sd_roo_data, scoring_percentages = init_baselines()
-                    hold_display = roo_data
-                    dk_lineups = init_DK_lineups('Main')
-                    fd_lineups = init_FD_lineups('Main')
-                    for key in st.session_state.keys():
-                        del st.session_state[key]
+col1, col2 = st.columns([3, 3])
+with col1:
+    with st.container():
+        col = st.columns(3)[0]  # Create 3 columns and use middle one
+        with col:
+            if st.button("Load/Reset Data", key='reset'):
+                st.cache_data.clear()
+                roo_data, sd_roo_data, scoring_percentages = init_baselines()
+                hold_display = roo_data
+                dk_lineups = init_DK_lineups('Main')
+                fd_lineups = init_FD_lineups('Main')
+                for key in st.session_state.keys():
+                    del st.session_state[key]
+with col2:
+    with st.form("Data Load"):
+        col1, col2 = st.columns([3, 3])
+        with col1:
+            view_var = st.selectbox("Select view", ["Simple", "Advanced"], key='view_var')
+        with col2:
+            site_var = st.selectbox("What site do you want to view?", ('Draftkings', 'Fanduel'), key='site_var')
+        submit_button = st.form_submit_button("Submit")
+        
 
 tab1, tab2, tab3 = st.tabs(["Scoring Percentages", "Player ROO", "Optimals"])