Disable download if meme template has not been created.

[VaishakKS]

To begin with, Awesome product you guys. Handy to a lot of memers out there.

Not much of an issue, can categorize it as a bug. So when I hit the download button without creating a meme template a file will be downloaded. Have attached the snapshot below.

Please make a fix such that the button triggers download only when a meme has been generated.

Thank you 😄.