Revert "Restructure NixOS host configuration files"

This reverts commit f92ad2b5ab.

nix/hosts/nixedo/default.nix

@@ -0,0 +1,30 @@
+{
+  features = {
+    cli = {
+      docker.enable = true;
+    };
+
+    homelab = {
+      audiobookshelf.enable = true;
+      beaverhabits.enable = true;
+      forgejo.enable = true;
+      freshrss.enable = true;
+      gitea.enable = true;
+      immich.enable = true;
+      jellyfin.enable = true;
+      paperless.enable = true;
+      pihole.enable = true;
+      tubearchivist-container.enable = true;
+      vaultwarden.enable = true;
+    };
+  };
+
+  imports = [
+    ../common
+    ../../users/opdavies
+
+    ./configuration.nix
+    ./secrets.nix
+    ./extra.nix
+  ];
+}