Chris Hill-Scott 3c6598cbc2 Only link to message status if message has failed ...

This retores the behaviour to as it was before
https://github.com/alphagov/notifications-admin/pull/2962
which inadvertently started linking to the guidance for messages that
were delivered or in sending.

2019-05-13 13:29:47 +01:00

..

notifications.html

…

status.html

Only link to message status if message has failed

2019-05-13 13:29:47 +01:00