vesktop: fix config path on darwin (#6889)

modules/programs/vesktop.nix

@@ -92,11 +92,9 @@ in
     };
   };
 
-  config = lib.mkIf cfg.enable {
-    home.packages = [
-      (cfg.package.override { withSystemVencord = cfg.vencord.useSystem; })
-    ];
-    xdg.configFile =
+  config = lib.mkIf cfg.enable (
+    let
+      config =
         lib.attrsets.unionOfDisjoint
           {
             "vesktop/settings.json".source = jsonFormat.generate "vesktop-settings" cfg.settings;
@@ -115,6 +113,17 @@ in
               }
             ) cfg.vencord.themes
           );
-
-  };
+    in
+    lib.mkMerge [
+      {
+        home.packages = [
+          (cfg.package.override { withSystemVencord = cfg.vencord.useSystem; })
+        ];
+      }
+      (lib.mkIf (!pkgs.stdenv.hostPlatform.isDarwin) { xdg.configFile = config; })
+      (lib.mkIf pkgs.stdenv.hostPlatform.isDarwin {
+        home.file = lib.mapAttrs' (n: v: lib.nameValuePair "Library/Application Support/${n}" v) config;
+      })
+    ]
+  );
 }