add input remapping module with easier configuration

modules/desktop/default.nix

@@ -30,10 +30,11 @@ in
       ./social.nix
       ./mail.nix
       ./specific-hardware
-      ./evremap.nix
       ./xmonad.nix
       ./fonts.nix
       ./firefox.nix
+      ./x.nix
+      ./input
     ];
 
     i18n.inputMethod = {
@@ -52,32 +53,6 @@ in
     services = {
       printing.enable = true;
       gnome.gnome-keyring.enable = true;
-
-      xserver = {
-        enable = true;
-
-        xkb = {
-          layout = "us";
-          variant = "altgr-intl";
-        };
-
-        libinput = {
-          enable = true;
-        };
-
-        desktopManager = {
-          xterm.enable = false;
-        };
-
-        displayManager = {
-          defaultSession = "none+xmonad";
-          gdm.enable = true;
-        };
-
-        windowManager.xmonad = {
-          enable = true;
-        };
-      };
     };
 
     programs.xss-lock = {