feat: install and enable Neovim language servers

nixos/modules/packages/development.nix

@@ -2,14 +2,19 @@
 
 {
   environment.systemPackages = with pkgs; [
+    bash-language-server
     clang
+    clang-tools
     cmake
+    cmake-language-server
     codexPkgs.codex
     gcc
     git
     gitui
+    lua-language-server
     meson
     neovim
+    nil
     ninja
     tree-sitter
     vim

nvim/lua/configs/lsp/lspconfig.lua

@@ -87,6 +87,8 @@ vim.lsp.config('haskel_server', {
 })
 
 
+vim.lsp.enable({ 'clangd', 'lua_ls', 'bashls', 'cmake', 'nil_ls' })
+
 vim.diagnostic.config({
   virtual_text = false,
 })