Request: Support for Mac badge number on dock

[megaroeny]

I came from Franz today, since Franz doesn't seem to be actively supported/worked on anymore. Their Slack badge notifications were broken too, so I'm happy to find Manageyum. 😄

One thing that Franz had was badge numbers for the notifications on the app icon (on macOS). Would be excellent if you could implement this. For Slack at least, it only shows the (•) dot badge right now.

Thanks! 👍