add: scroll to change volume

[KenAKAFrosty]

👋 Hey hey! I totally understand this isn't going to end up in the final, but I added a fun little feature to change volume on scroll in the Drum Kit and wanted to share, and I'm practicing using Git/GH in general. So this will be a great way to learn what happens when a PR gets rejected 😂😂😂

Anyway, thanks for the tutorials! I've had a ton of fun making my console messages way more flavorful ever since I saw your video about that. Take care!