feat: waybar modulization

pkgs/overlays/default.nix

@@ -1,7 +1,4 @@
-{ config }:
-prev: final: {
-  imports = [
-    ./ferium.nix
-    (import ./vesktop.nix { inherit config; })
-  ];
-}
+[
+  (import ./ferium.nix)
+  (import ./vesktop.nix)
+]

pkgs/overlays/vesktop.nix

@@ -1,4 +1,3 @@
-{ config }:
 final: prev:
 let
   discordIcon = prev.lib.readFile ../../pkgs/assets/discord.svg;
@@ -10,11 +9,6 @@ in
       (prev.lib.head oldAttrs.desktopItems).override {
         name = "discord";
         desktopName = "Discord";
-        exec =
-          if config.hardware.nvidia.prime.offload.enableOffloadCmd == true then
-            "nvidia-offload vesktop %U"
-          else
-            "vesktop %U";
       }
     );