Use nvim-tree as file explorer when we open a folder

netrw plugin needs to be disabled, and nvim-tree needs to be start
package. Otherwise, the hijacking won't work, and when we open a folder,
it just open a new file with the same name.

core/globals.vim

@@ -46,8 +46,8 @@ language en_US.utf-8
 "{{ Disable loading certain plugins
 " Whether to load netrw by default, see
 " https://github.com/bling/dotvim/issues/4
-" let g:loaded_netrw       = 0
-" let g:loaded_netrwPlugin = 0
+let g:loaded_netrw       = 1
+let g:loaded_netrwPlugin = 1
 let g:netrw_liststyle = 3
 if g:is_win
   let g:netrw_http_cmd = 'curl --ssl-no-revoke -Lo'

lua/config/nvim-tree.lua

@@ -45,7 +45,7 @@ nvim_tree.setup({
 		height = 30,
 		hide_root_folder = false,
 		side = "left",
-		auto_resize = false,
+		auto_resize = true,
 		mappings = {
 			custom_only = false,
 			list = {},

lua/plugins.lua

@@ -359,7 +359,6 @@ require("packer").startup({
     use {
       'kyazdani42/nvim-tree.lua',
       requires = { 'kyazdani42/nvim-web-devicons' },
-      keys = {{'n', '<space>s'}, },
       config = [[require('config.nvim-tree')]]
     }
   end,