added filetree toggle keymap

lua/custom/plugins/filetree.lua

@@ -1,3 +1,5 @@
+vim.cmd([[ let g:neo_tree_remove_legacy_commands = 1 ]])
+
 return {
   "nvim-neo-tree/neo-tree.nvim",
   version = "*",
@@ -9,4 +11,9 @@ return {
   config = function ()
     require('neo-tree').setup {}
   end,
+
+  -- Keymaping
+  init = function()
+    vim.keymap.set('n', '<leader>te', '<Cmd>Neotree toggle<CR>', {desc = '[T]oggle Neotree [E]xplorer'})
+  end,
 }