For muting and unmuting Google Meet from the extension icon.
For muting and unmuting Google Meet from the extension icon in the Chrome browser, no matter what tab you're currently looking at.
* Toggle mute in your active Google Meet no matter what tab you're looking at
* Extension icon is green when you're in an active Google Meet and unmuted, red when muted, and otherwise gray
* You'll get an error message if you have more than one Meet open
* You can toggle the mute button on a Meet join page but it won't do much
* If you have a Meet open and toggle muting from within the application or using your keyboard, the extension icon will register this and change color appropriately (checks ever 3 seconds)
See code at https://github.com/jasonketola/Google-Meet-Mute-Toggler.