add route for old 88x31 button uri

srv/content/router.hy

@@ -68,6 +68,11 @@
       :code 200
       :body (parse-html-file "./www/site/html/test.html" :route "/test.html"))))
 
+  (when (= path "/files/natalieee.net.png")
+    (return (dict
+      :code 308
+      :headers {"Location" "/assets/88x31/natalieee.net.png"}
+      :body "")))
 
   (when (= path "/comment")
     (cond