Slime Clicker v2.1 for Windows

This is just a simple quality of life update, which adds support for Discord Rich Presence. 

Please note..

• This update is only for Windows. There is no change in gameplay, so don't worry, if you use MacOS or Linux, you aren't missing out on anything. It's just a small update which adds Rich Presence to the game.
• I might update the Linux and MacOS versions to v2.1 someday. But it's not really an important update, this project had a lot of issues. And I hope I will be able to make better games in the future.