refactor: moved nixos modules to dendrite pattern

modules/nixos/nixos-modules.nix

@@ -0,0 +1,21 @@
+{config, ...}: let
+  mod = config.flake.nixosModules;
+in {
+  flake.nixosModules.nixos-modules-all = {
+    imports = [
+      mod.nixos-system
+      mod.nixos-hardware
+      mod.nixos-users
+      mod.nixos-desktop
+      mod.nixos-ssh
+      mod.nixos-i18n
+      mod.storage
+      mod.home-manager-adaptors
+      mod.programs
+    ];
+
+    nixpkgs.config.permittedInsecurePackages = [
+      "dotnet-sdk-6.0.428"
+    ];
+  };
+}