Reorganize imports

Signed-off-by: Nikolaos Karaolidis <nick@karaolidis.com>

hosts/common/configs/system/system/default.nix

@@ -0,0 +1,17 @@
+{ inputs, ... }:
+{
+  system = {
+    autoUpgrade = {
+      enable = true;
+      flake = inputs.self.outPath;
+      flags = [
+        "--update-input"
+        "nixpkgs"
+        "-L"
+      ];
+      dates = "02:00";
+    };
+
+    stateVersion = "24.11";
+  };
+}