feat(home-manager): service defs and fmt

fmt: reformatted using nixpkgs-fmt prettifier
mpd: created configuration
hypr: add window rules
commons: add usingMusicPlayerDaemon variable

home-manager/stvnliu/shells/nushell/default.nix

@@ -1,26 +1,26 @@
-{
-  pkgs,
-  config,
-  lib,
-  ...
-}: let
+{ pkgs
+, config
+, lib
+, ...
+}:
+let
   cfg = config.myShells.nushell;
 in
-  with lib; {
-    options = {
-      myShells.nushell = {enable = mkEnableOption "Enables nushell config";};
-    };
-    config = mkIf cfg.enable {
-      programs = {
-        nushell = {
-          enable = true;
-          configFile.source = ./init/config.nu;
-          shellAliases = import ../aliases/default.nix {inherit pkgs;};
-        };
-        carapace = {
-          enable = true;
-          enableNushellIntegration = true;
-        };
+with lib; {
+  options = {
+    myShells.nushell = { enable = mkEnableOption "Enables nushell config"; };
+  };
+  config = mkIf cfg.enable {
+    programs = {
+      nushell = {
+        enable = true;
+        configFile.source = ./init/config.nu;
+        shellAliases = import ../aliases/default.nix { inherit pkgs; };
+      };
+      carapace = {
+        enable = true;
+        enableNushellIntegration = true;
       };
     };
-  }
+  };
+}