add refactor plugin

lua/custom/plugins/refactor.lua

@@ -0,0 +1,10 @@
+return {
+  "ThePrimeagen/refactoring.nvim",
+  dependencies = {
+    "nvim-lua/plenary.nvim",
+    "nvim-treesitter/nvim-treesitter",
+  },
+  config = function()
+    require("refactoring").setup()
+  end,
+}