users: switch to ssh as default shell

My efforts to use nushell as a default shell have been
for naught so far. It silently breaks stuff you wouln't
expect it to break, like shipping environment variables
and stuff.

modules/other/users.mod.nix

@@ -57,6 +57,8 @@ in
     };
   };
   config = {
+    # environment.shells = [ pkgs.nushell ];
+    programs.zsh.enable = true;
     users = {
       mutableUsers = true;
       users = {
@@ -71,7 +73,7 @@ in
             "nix"
             "docker"
           ];
-          shell = pkgs.nushell;
+          shell = pkgs.zsh;
         };
       };
     };