Refactor database connection parameters to use simplified secret keys for improved clarity and maintainability.

app.py

@@ -96,11 +96,11 @@ def get_user_info(credentials):
 # Remove the load_data function and replace with database connection
 def get_db_connection():
     return mysql.connector.connect(
-        host=st.secrets.db.host,
-        port=int(st.secrets.db.port),
-        user=st.secrets.db.user,
-        password=st.secrets.db.password,
-        database=st.secrets.db.database
+        host=st.secrets.host,
+        port=int(st.secrets.port),
+        user=st.secrets.user,
+        password=st.secrets.password,
+        database=st.secrets.database
     )
 
 # Main function to run the Streamlit app