fix(#2862): windows path replaces backslashes with forward slashes (#2903)

* Fix Winodws path issue by replacing backslashes with forward slashes

* Fix #2862 (handle all filename-related tasks)

* fix type mismatch

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Co-authored-by: Alexander Courtis <alex@courtis.org>

lua/nvim-tree/utils.lua

@@ -290,7 +290,7 @@ function M.escape_special_chars(path)
   if path == nil then
     return path
   end
-  return M.is_windows and path:gsub("%(", "\\("):gsub("%)", "\\)") or path
+  return M.is_windows and path:gsub("\\", "/") or path
 end
 
 --- Create empty sub-tables if not present