backoffice: add return button in sidebar (#49073)

wcs/backoffice/management.py

@@ -2602,6 +2602,7 @@ class FormBackOfficeStatusPage(FormStatusPage):
         r = TemplateIO(html=True)
 
         if not formdata.is_draft():
+            r += htmltext('<p><a class="button" href="..">%s</a></p>') % _('Back to Listing')
             r += htmltext('<div class="extra-context">')
             if (formdata.backoffice_submission and
                     formdata.submission_agent_id == str(get_request().user.id) and