Move packer output to popup window

lua/plugins.lua

@@ -5,7 +5,8 @@ vim.cmd([[
   augroup end
 ]])
 
-require('packer').startup(function(use)
+require('packer').startup {
+    function(use)
         use 'wbthomason/packer.nvim'
         use {
             'rcarriga/nvim-notify',
@@ -123,4 +124,12 @@ require('packer').startup(function(use)
                 require('indent_blankline').setup()
             end
         }
-end)
+    end,
+    config = {
+        display = {
+            open_fn = function ()
+                return require('packer.util').float({ border = 'single' })
+            end
+        },
+    }
+}