put package.json name back to webtorrent-app
put package.json name back to webtorrent-app

webtorrent-www relies on this name. I originally changed it because I
thought the windows install builder was using it, but I pass all the
options into that explicitly now, and even pass an option to prevent it
from using package.json, so this should be okay.

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