Replace default unddit.com since it shut down for a while now with a

continuation of pushshift called pullpush.

privfrontends/vars.yaml

@@ -1,4 +1,3 @@
----
 default_restart_policy: unless-stopped
 configs_dir: "/opt/configs-privfrontends"
 configs_dir_local: "./configs"
@@ -116,6 +115,7 @@ apps:
             environment:
               FRONT_PAGE: popular
               COMMENT_SORT: new
+              PUSHSHIFT_FRONTEND: "https://undelete.pullpush.io/"
               BLUR_NSFW: on
               USE_HLS: on
               AUTOPLAY_VIDEOS: off