[neovim] add some neotree config

nix/home/neovim/neovim.nix

@@ -63,6 +63,7 @@
       vim.opt.expandtab   = true
       vim.opt.smartindent = true
 
+
       -- load plugins
       -- neo-tree
       require("neo-tree").setup({
@@ -76,10 +77,21 @@
         window = {
           position = "left",
           width = 45,
+          mapping_options = {
+            noremap = true,
+            nowait = true,
+          },
+          mappings = {
+            ["<space>"] = {
+              "toggle_node",
+              nowait = false,
+            },
+          },
         },
       })
       require("neo-tree.sources.manager").show("filesystem")
 
+
       -- nvim-treesitter
       require("nvim-treesitter").setup({
         build = ":TSUpdate",
@@ -94,10 +106,12 @@
         end
       })
 
+
       -- telescope-nvim
       local builtin = require("telescope.builtin")
       vim.keymap.set('n', '<C-p>', builtin.find_files, {})
 
+
       -- vimplugin-catppuccin-nvim
       require("catppuccin").setup({ flavour = "mocha" })
       vim.cmd.colorscheme "catppuccin"