Show "Download Complete" notification
Show "Download Complete" notification

When torrent download finishes and window is not focused, notify the
user.

feross/webtorrent-desktop,webtorrent/webtorrent-desktop,feross/webtorrent-desktop,michaelgeorgeattard/webtorrent-desktop,yciabaud/webtorrent-desktop,michaelgeorgeattard/webtorrent-desktop,feross/webtorrent-desktop,webtorrent/webtorrent-desktop,yciabaud/webtorrent-desktop,feross/webtorrent-app,webtorrent/webtorrent-desktop,michaelgeorgeattard/webtorrent-desktop,feross/webtorrent-app,feross/webtorrent-app,yciabaud/webtorrent-desktop