use platform-dependent menu item name for 'close'
use platform-dependent menu item name for 'close'

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