ADD sway initial configuration

modules/sway.nix

@@ -0,0 +1,20 @@
+{ config, pkgs, ... }:
+{
+ programs.sway = {
+    enable = true;
+    wrapperFeatures.gtk = true; # so that gtk works properly
+    extraPackages = with pkgs; [
+      swaylock
+      swayidle
+      wl-clipboard
+      wf-recorder
+      mako # notification daemon
+      grim
+      slurp
+      alacritty
+      wofi
+    ];
+ };
+ programs.waybar.enable = true;
+ services.xserver.layout = "fr";
+}