feat(ops/modules): Redirect machine base names to their config

With this change, entering just "whitby.tvl.fyi" or "sanduny.tvl.su"
in a browser will redirect users to their machine configurations.

Change-Id: Ibf076a469bcce073e1b1970aa568d6fe16a5c75a
Reviewed-on: https://cl.tvl.fyi/c/depot/+/5304
Tested-by: BuildkiteCI
Reviewed-by: sterni <sternenseemann@systemli.org>
Autosubmit: tazjin <tazjin@tvl.su>

ops/machines/sanduny/default.nix

@@ -15,6 +15,7 @@ in
 {
   imports = [
     (mod "tvl-users.nix")
+    (mod "www/sanduny.tvl.su.nix")
   ];
 
   networking = {

ops/machines/whitby/default.nix

@@ -41,6 +41,7 @@ in
     "${depot.path}/ops/modules/www/todo.tvl.fyi.nix"
     "${depot.path}/ops/modules/www/tvl.fyi.nix"
     "${depot.path}/ops/modules/www/tvl.su.nix"
+    "${depot.path}/ops/modules/www/whitby.tvl.fyi.nix"
     "${depot.path}/ops/modules/www/wigglydonke.rs.nix"
     "${depot.third_party.agenix.src}/modules/age.nix"
     "${pkgs.path}/nixos/modules/services/web-apps/gerrit.nix"