helix.nix: add {go, html, css} lsp

packages/helix.nix

@@ -3,33 +3,36 @@
   makeWrapper,
   helix,
   alejandra,
+  basedpyright,
   bash-language-server,
   black,
   clang-tools,
+  clippy,
   cmake-format,
   cmake-language-server,
   deno,
   dprint,
   formats,
   gdb,
+  golangci-lint-langserver,
+  gopls,
   lazygit,
   lib,
   lldb_19,
   marksman,
   nil,
   pyright,
+  ruff,
   rust-analyzer,
+  rustfmt,
   shellcheck,
   shfmt,
-  stdenv,
   solargraph,
+  stdenv,
+  superhtml,
   tinymist,
   typescript-language-server,
-  rustfmt,
-  clippy,
   vscode-langservers-extracted,
-  ruff,
-  basedpyright,
   ...
 }: let
   inherit (lib.meta) getExe;
@@ -298,6 +301,13 @@
 
       # ruby
       solargraph
+
+      gopls
+      golangci-lint-langserver
+
+      vscode-langservers-extracted
+
+      superhtml
     ];
     buildInputs = [makeWrapper];
     postBuild = ''