the generate invite box now wraps into 1 column automatically.
the invite code is ellipsized on small displays.
the dropdown button has a large tappable area, and is aligned correctly.
server now provides a reason for login fail to the web ui, and displays
it inside the login button, which looks a lot nicer than the previously
used error box.
The invite route no longer calls checkInvite, instead just chekcing the
invite exists. This speeds up page loading. the 404 and invalidCode
pages are now loaded when necessary.