fix nerdcommenter custom bindings

lua/general.lua

@@ -42,7 +42,13 @@ codewindow.apply_default_keybinds()
 local cmp = require'cmp'
 
 cmp.setup({
-    window = {
+snippet = {
+      -- REQUIRED - you must specify a snippet engine
+      expand = function(args)
+         require('luasnip').lsp_expand(args.body) -- For `luasnip` users.
+      end,
+    },
+        window = {
       -- completion = cmp.config.window.bordered(),
       -- documentation = cmp.config.window.bordered(),
     },