fix(git): handle gitignore for dirs in windows, fixes #158 (#159)

chore(utils.lua): remove duplicate definition of M.path_separator

Author: lopi-py

lua/neo-tree/git/ignored.lua

@@ -68,7 +68,7 @@ end
 M.is_ignored = function(ignored, path, _type)
   path = _type == "directory" and (path .. sep) or path
   for _, v in ipairs(ignored) do
-    if v:sub(-1) == utils.path_separator then
+    if v:sub(-1) == utils.path_separator or (utils.is_windows and _type == "directory") then
       -- directory ignore
       if vim.startswith(path, v) then
         return true

lua/neo-tree/utils.lua

@@ -347,13 +347,6 @@ M.resolve_config_option = function(state, config_option, default_value)
   end
 end
 
----The file system path separator for the current platform.
-M.path_separator = "/"
-M.is_windows = vim.fn.has("win32") == 1 or vim.fn.has("win32unix") == 1
-if M.is_windows == true then
-  M.path_separator = "\\"
-end
-
 ---Normalize a path, to avoid errors when comparing paths.
 ---@param path string The path to be normalize.
 ---@return string string The normalized path.