fix: normalize cwd with '..'

lua/nvim-tree/utils.lua

@@ -208,4 +208,24 @@ function M.file_exists(path)
   return error == nil
 end
 
+--- @param num number elements to take
+--- @param list table elements
+--- @return table
+function M.take(num, list)
+  local t = {}
+  for i, c in ipairs(list) do
+    if i > num then break end
+    table.insert(t, c)
+  end
+  return t
+end
+
+--- @param path string
+--- @return string
+function M.path_normalize(path)
+  local components = vim.split(vim.fn.expand(path), path_separator)
+  local num_dots = #vim.tbl_filter(function(v) return v == ".." end, components)
+  return M.path_join(M.take(#components - num_dots * 2, components))
+end
+
 return M