The information is sent via the cookie 'server_settings'. The value is a
base64-encoded json object containing the data necessary
for site-specific customization.
Also fixed a bug that was preventing the 'add new client' button from being
disabled when the client limit is reached.
If configured, anyone missing the required entitlement will now be denied
access to the application and its api endpoints. If unset, any authenticated
user is accepted.
The first button in the form tree is always the default button. In order for
the save button to become default, the footers were reorganized in backwards
order and then flexbox-ed to be laid out backwards.
This in order to keep the association of right -> forwards/accept
and left -> backwards/cancel.
