added an commit statment to the change function

added an cp

main.py

@@ -78,6 +78,7 @@ def change():
     elif change == 0:
         return "<p>Nothing was done!</p>"
     c.execute(f"UPDATE users SET balance = balance + {change} WHERE id={user_id}")
+    conn.commit()
     c.execute(f"SELECT * FROM users WHERE id={user_id}")
     user = c.fetchall()[0][1]
     return f'<p>{change} was {text} {user}</p> <a href="/list">back to the list</a>'