Ensure state.saved.prefs exists
Ensure state.saved.prefs exists

Fixes a bug I introduced in the migrations

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