Hide signup form for logged in users; fixes #835
Hide signup form for logged in users; fixes #835

FreeFeed/freefeed-react-client,davidmz/freefeed-react-client,kadmil/freefeed-react-client,kadmil/freefeed-react-client,kadmil/freefeed-react-client,davidmz/freefeed-react-client,FreeFeed/freefeed-react-client,davidmz/freefeed-react-client,FreeFeed/freefeed-react-client