Clean up `handlers.js`
Clean up `handlers.js`

feross/webtorrent-app,feross/webtorrent-desktop,feross/webtorrent-desktop,webtorrent/webtorrent-desktop,webtorrent/webtorrent-desktop,feross/webtorrent-desktop,feross/webtorrent-app,webtorrent/webtorrent-desktop,feross/webtorrent-app