allow refereeing invitation decline without login

scipost_django/templates/email/referees/invite_contributor_to_referee.html

@@ -12,7 +12,7 @@
   (see <a href="https://{{ domain }}{{ invitation.submission.get_absolute_url }}">https://{{ domain }}{{ invitation.submission.get_absolute_url }}</a> - first submitted {{ invitation.submission.original_submission_date|date:"d M Y" }}).
 </p>
 <p>
-  Please <a href="https://{{ domain }}{% url 'submissions:accept_or_decline_ref_invitations' %}">accept or decline</a> (login required) this invitation as soon as possible (ideally within the next 2 working days).
+  Please respond to this invitation as soon as possible (ideally within the next 2 working days): <a href="https://{{ domain }}{% url 'submissions:accept_or_decline_ref_invitations' %}">accept</a> (login required) or <a href="https://{{ domain }}{% url 'submissions:decline_ref_invitation' invitation.invitation_key %}">decline</a>.
 </p>
 <p>
   If you accept, your report can be submitted by simply clicking on the "Contribute a Report" link on <a href="https://{{ domain }}{{ invitation.submission.get_absolute_url }}">the Submission Page</a>{% if invitation.submission.reporting_deadline %} before the reporting deadline (currently set at {{ invitation.submission.reporting_deadline|date:'d-m-Y' }}){% endif %}; your report will be automatically recognized as an invited report.

scipost_django/templates/email/referees/invite_contributor_to_referee_reminder1.html

@@ -20,7 +20,7 @@
   could you please let us know whether we can count on your expertise?
 </p>
 <p>
-  Please <a href="https://{{ domain }}{% url 'submissions:accept_or_decline_ref_invitations' %}">accept or decline</a> (login required) this invitation.
+  Please respond to this invitation: <a href="https://{{ domain }}{% url 'submissions:accept_or_decline_ref_invitations' %}">accept</a> (login required) or <a href="https://{{ domain }}{% url 'submissions:decline_ref_invitation' invitation.invitation_key %}">decline</a>.
 </p>
 <p>
   If you accept, your report can be submitted by simply clicking on the "Contribute a Report" link on <a href="https://{{ domain }}{{ invitation.submission.get_absolute_url }}">the Submission Page</a>{% if invitation.submission.reporting_deadline %} before the reporting deadline (currently set at {{ invitation.submission.reporting_deadline|date:'d-m-Y' }}){% endif %}; your report will be automatically recognized as an invited report.

scipost_django/templates/email/referees/invite_contributor_to_referee_reminder2.html

@@ -20,7 +20,7 @@
   could you please let us know whether we can count on your expertise?
 </p>
 <p>
-  Please <a href="https://{{ domain }}{% url 'submissions:accept_or_decline_ref_invitations' %}">accept or decline</a> (login required) this invitation.
+  Please respond to this invitation: <a href="https://{{ domain }}{% url 'submissions:accept_or_decline_ref_invitations' %}">accept</a> (login required) or <a href="https://{{ domain }}{% url 'submissions:decline_ref_invitation' invitation.invitation_key %}">decline</a>.
 </p>
 <p>
   If you accept, your report can be submitted by simply clicking on the "Contribute a Report" link on <a href="https://{{ domain }}{{ invitation.submission.get_absolute_url }}">the Submission Page</a>{% if invitation.submission.reporting_deadline %} before the reporting deadline (currently set at {{ invitation.submission.reporting_deadline|date:'d-m-Y' }}){% endif %}; your report will be automatically recognized as an invited report.