Toggle for "This app is running in the background" alert#680

Allow users to toggle off the alert saying that medal is running in the background. Currently it plays every single time the app is minized to the taskbar, instead of just the first time. I’ve seen other apps implement this where it will only alert on the first minimize, but I’d love to have a way to toggle it off entirely.

@glances it should only do this if you don’t have any clips. Have you taken any clips yet?

I just noticed that it no longer has been playing the alert after taking some clips. Thank you!