I am new to Converkit and accidentally deleted the standard auto template, which did not have the "Built with Convertkit" button at the bottom of my emails. Now when I go to create a new email, even with text only I am still getting the "Built with Convertkit" button" - I am aware of upgrading but am not looking to do that at this time and I also was able to send multiple emails previously without upgrading. How can I create a simple text email without the button or duplicate the previous emails sent without it?