feat (home/shell): update alias

flake.nix

@@ -18,7 +18,7 @@
           {
             home-manager.useGlobalPkgs = true;
             home-manager.useUserPackages = true;
-            home-manager.users.hms = ./home-manager/home.nix;
+            home-manager.users.hms = ./home/home.nix;
           }
         ];
       };

home/home.nix

@@ -37,6 +37,7 @@
       ":q" = "exit";
       "h" = "hx";
       "o" = "xdg-open";
+      "update" = "sudo nixos-rebuild switch --flake ~/dev/nixos";
     };
 
     stateVersion = "25.11";