- Asks for permission when opening the app if it isn't already
granted
- Highlights with a notification that stays for 2s
- Clicking on the notification brings that window/channel
to focus
- Uses document.hasFocus() rather than document.hidden, since
it seems to be more accurate when the tab is in focus
but the window is not
Imlements issue #128
YuviPanda
Mattias Erming