Only Allow Admins

Changed the decorator to only allow admin users access to the page.

app/main/views/dashboard.py

@@ -108,7 +108,7 @@ def template_history(service_id):
 
 @main.route("/services/<service_id>/template-usage")
 @login_required
-@user_has_permissions('view_activity', admin_override=True)
+@user_has_permissions(admin_override=True)
 def template_usage(service_id):
 
     year, current_financial_year = requested_and_current_financial_year(request)