Fix neo-tree keymap description (nvim-lua#932)

The lazy.nvim keys parameter does not need the `desc` to
be inside a table in the way that vim.keymap.set() does.
With this fix the keymap description will be properly
shown for example in telescope keymap search

lua/kickstart/plugins/neo-tree.lua

@@ -11,7 +11,7 @@ return {
   },
   cmd = 'Neotree',
   keys = {
-    { '\\', ':Neotree reveal<CR>', { desc = 'NeoTree reveal' } },
+    { '\\', ':Neotree reveal<CR>', desc = 'NeoTree reveal' },
   },
   opts = {
     filesystem = {