feat: use native undotree

init.lua

···
 if vim.fn.has "nvim-0.12" == 1 then
   require("vim._extui").enable { enable = true }
   vim.opt.diffopt:append "inline:word"
+  vim.cmd.packadd "nvim.undotree"
+  require("core.utils").map("n", "<leader>u", vim.cmd.Undotree)
 end

lazy-lock.json

···
   "snacks.nvim": { "branch": "main", "commit": "da230e3ca8146da4b73752daaf0a1d07d343c12d" },
   "todo-comments.nvim": { "branch": "main", "commit": "ae0a2afb47cf7395dc400e5dc4e05274bf4fb9e0" },
   "tokyonight.nvim": { "branch": "main", "commit": "4d159616aee17796c2c94d2f5f87d2ee1a3f67c7" },
-  "undotree": { "branch": "master", "commit": "fe9a9d0645f0f5532360b5e5f5c550d7bb4f1869" },
   "vim-repeat": { "branch": "master", "commit": "8106e142dfdc278ff3eaaadd7b362ad7949d4357" },
   "vim-speeddating": { "branch": "master", "commit": "426c792e479f6e1650a6996c683943a09344c21e" },
   "vim-surround": { "branch": "master", "commit": "aeb933272e72617f7c4d35e1f003be16836b948d" },

lua/plugins/navigation.lua

···
 ---@type LazySpec
 return {
   {
-    "mbbill/undotree",
-    cmd = "UndotreeToggle",
-    keys = { { "<leader>u", vim.cmd.UndotreeToggle } },
-    init = function()
-      vim.g.undotree_DiffAutoOpen = 0
-      vim.g.undotree_WindowLayout = 3
-    end,
-  },
-
-  {
     "stevearc/oil.nvim",
     event = "VeryLazy",
     cmd = "Oil",