pinwheel: Separate ssh key sets in ssh module

hosts/pinwheel/modules/ssh/default.nix

@@ -42,6 +42,7 @@
       owner = "alex";
       group = "users";
     };
+
     "alex.pinwheel-github.com" = {
        file = ../../../../secrets/pinwheel/alex.pinwheel-github.com.age;
        path = "/home/alex/.ssh/alex.pinwheel-github.com";