I know, it's still in git history, but now we can change to a different
instance and it'll be ok.

Includes template cleanup

* Removed meta description tag as per feedback for SD-157
* Added footnote styles
* Added reset-passphrase and create-account form styles
* Consolidated existing auth page styles with a common auth class

What remains is not perfect in any way, but is significantly easier to
reason about.

Some MVP features were removed as well. These are things that may come back
in much the same shape, but maybe not. Those things are primarily Events
and Notifications.

The remaining tests fail and are scheduled for removal, but they at least
test "features" that still exist.