change from mono-home-manager to full flake multi-system configuration

hosts/t440p/sway-hardware.nix

@@ -0,0 +1,21 @@
+{ config, pkgs, lib, ... }:
+
+{
+  wayland.windowManager.sway.config = {
+    output = {
+      "eDP-1" = {
+        pos = "0 0";
+        scale = "1";
+      };
+    };
+
+    input = {
+      "type:keyboard" = {
+        xkb_layout = "de";
+      };
+      "*" = {
+        xkb_layout = "de";
+      };
+    };
+  };
+}