feat: add main menu options and scripts

app.py

@@ -39,16 +39,7 @@ def load_database():
     return db_conn
 
 
-@st.cache_resource
-def load_database2():
-    db_conn = sqlite3.connect("resources/ai_app.db")
-    with open("resources/schema.sql", "r") as f:
-        db_conn.executescript(f.read())
-
-    return db_conn
-
-
-db_conn = load_database2()
+db_conn = load_database()
 
 
 def execute_sql(sql_query):
@@ -407,6 +398,7 @@ selected_page = st.sidebar.radio("Go to", pages)
 if st.sidebar.button("Clear All"):
     # Clears all st.cache_resource caches:
     st.cache_resource.clear()
+    st.rerun()
 
 # Show the appropriate page based on the selection
 if selected_page == "Introduction":