Resolve cyberchef and radicale images using nix-snapshotter

Increase inotify max user instances to 256
Disable tailscale by default

kubenix-modules/cyberchef.nix

@@ -9,6 +9,7 @@
 
         spec.containers.cyberchef = {
           image = myLib.globals.images.cyberchef;
+          imagePullPolicy = "Always";
           ports.web.containerPort = 8000;
         };
       };