Go back to triage page if you’ve come from there

app/main/views/feedback.py

@@ -135,6 +135,11 @@ def feedback(ticket_type):
     return render_template(
         'views/support/form.html',
         form=form,
+        back_link=(
+            url_for('.support')
+            if severe is None else
+            url_for('.triage', ticket_type=ticket_type)
+        ),
         show_status_page_banner=(ticket_type == PROBLEM_TICKET_TYPE),
         page_title={
             GENERAL_TICKET_TYPE: 'Contact GOV.UK Notify support',