Change keybind to switch keyboard layout

modules/home/sway.nix

@@ -195,7 +195,7 @@ in
 
                 input."type:keyboard" = {
                     xkb_layout = "us,de";
-                    xkb_options = "grp:toggle";
+                    xkb_options = "grp:lctrl_lalt_toggle,lv3:ralt_switch";
                 };
                 
                 output = gui.monitors;

modules/nix/common.nix

@@ -42,6 +42,9 @@ in
                         (mkIf (cfg.caps == "ctrl-esc") { capslock = "overload(control, esc)"; })
                         (mkIf (cfg.caps == "esc") { capslock = "esc"; })
                     ];
+                    altgr = mkMerge [
+                        { "-" = "macro(C-S-u 2 0 1 4 space)"; }
+                    ];
                 };
             };
         };