add wallpapers

hosts/lio/flake.lock

@@ -195,11 +195,11 @@
     },
     "nixpkgs_2": {
       "locked": {
-        "lastModified": 1753694789,
-        "narHash": "sha256-cKgvtz6fKuK1Xr5LQW/zOUiAC0oSQoA9nOISB0pJZqM=",
+        "lastModified": 1757745802,
+        "narHash": "sha256-hLEO2TPj55KcUFUU1vgtHE9UEIOjRcH/4QbmfHNF820=",
         "owner": "nixos",
         "repo": "nixpkgs",
-        "rev": "dc9637876d0dcc8c9e5e22986b857632effeb727",
+        "rev": "c23193b943c6c689d70ee98ce3128239ed9e32d1",
         "type": "github"
       },
       "original": {

hosts/lio/sway_customizations.nix

@@ -57,12 +57,14 @@ let
         scale = "1";
         pos = "0 0";
         mode = "3840x2160@97.983Hz";
+        bg = "${./wallpapers/pendragon.png} fill";
       };
       "DP-2" = {
         scale = "1";
         transform = "270";
         pos = "-1440 -640";
         mode = "3440x1440@99.982Hz";
+        bg = "${./wallpapers/ghibli.png} fill";
       };
     };
   };