fix(#2794): sshfs compatibility (#2893)

* add type fallback for nil types

* add PR suggestions

* Update lua/nvim-tree/explorer/explore.lua

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

* use type from fs_stat for sshfs compatibility

---------

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

lua/nvim-tree/actions/fs/remove-file.lua

@@ -56,13 +56,18 @@ local function remove_dir(cwd)
   end
 
   while true do
-    local name, t = vim.loop.fs_scandir_next(handle)
+    local name, _ = vim.loop.fs_scandir_next(handle)
     if not name then
       break
     end
 
     local new_cwd = utils.path_join { cwd, name }
-    if t == "directory" then
+
+    -- Type must come from fs_stat and not fs_scandir_next to maintain sshfs compatibility
+    local stat = vim.loop.fs_stat(new_cwd)
+    local type = stat and stat.type or nil
+
+    if type == "directory" then
       local success = remove_dir(new_cwd)
       if not success then
         return false