feat(neovim): style completion windows

home-manager/neovim/nvim-cmp.lua

@@ -50,7 +50,25 @@ cmp.setup({
             end
         end, { "i", "s" }),
     }),
-    experimental = { ghost_text = true }
+    experimental = { ghost_text = true },
+    window = {
+        completion = cmp.config.window.bordered(),
+        documentation = cmp.config.window.bordered(),
+    },
+    formatting = {
+        fields = { "menu", "abbr", "kind" },
+        format = function(entry, item)
+            local menu_icon = {
+                nvim_lsp = "λ",
+                luasnip = "⋗",
+                buffer = "Ω",
+                path = "🖿",
+            }
+
+            item.menu = menu_icon[entry.source.name]
+            return item
+        end,
+    },
 })
 
 -- `/` cmdline setup.