helix: update +g to copy link to github

modules/home/helix.nix

···
       keys = let
         plusMenu = {
           o = ":pipe-to xargs xdg-open";
-          g = ":sh gh browse %{buffer_name}:%{cursor_line}";
+          g = ":sh gh browse -n %{buffer_name}:%{cursor_line} | ${pkgs.wl-clipboard}/bin/wl-copy";
           b = ":echo %sh{git blame -L %{cursor_line},+1 %{buffer_name}}";
         };
         runMenu = {