feat(util) create gitui extension (#2238)

lua/lazyvim/plugins/extras/util/gitui.lua

@@ -0,0 +1,23 @@
+return {
+
+  -- Ensure GitUI tool is installed
+  {
+    "williamboman/mason.nvim",
+    keys = {
+      { "<leader>gG",
+        function()
+          require("lazyvim.util").terminal.open({ "gitui" }, { esc_esc = false, ctrl_hjkl = false })
+        end,
+        desc = "gitui (cwd)" },
+      { "<leader>gg",
+        function()
+          require("lazyvim.util").terminal.open({ "gitui" }, { cwd = require("lazyvim.util").root.get(), esc_esc = false, ctrl_hjkl = false })
+        end,
+        desc = "gitui (root dir)" }
+    },
+    opts = function(_, opts)
+      opts.ensure_installed = opts.ensure_installed or {}
+      vim.list_extend(opts.ensure_installed, { "gitui" })
+    end,
+  },
+}