refactor: added flake parts

modules/hosts/darwin/hesperium/configuration.nix

@@ -0,0 +1,18 @@
+{...}: {
+  flake.darwinModules.hesperiumConfiguration = {...}: {
+    host = {
+      users = {
+        leyla = {
+          isDesktopUser = true;
+          isTerminalUser = true;
+          isPrincipleUser = true;
+        };
+        eve.isNormalUser = false;
+      };
+    };
+
+    system.stateVersion = 5;
+
+    nixpkgs.hostPlatform = "aarch64-darwin";
+  };
+}