### Godot version

4.1 dev3

### System information

Windows 10.0.19045 - Vulkan (Forward+) - dedicated NVIDIA GeForce GTX 1060 (NVIDIA; 30.0.15.1403) - Intel(R) Core(TM) i7-7700HQ CPU @ 2.80GHz (8 Threads)

### Issue description

Trying to move a folder results in moving error and it's not moved.
Regression from #75330

A fix already exists, but I'm opening an issue so it's not lost (the PR isn't ready and not very active).

### Steps to reproduce

1. Add 2 folders in filesystem
2. Move one folder into another one

### Minimal reproduction project

N/A
drop_position = 0;
		} else if (ti == resources_item) {
			
			drop_position = dirs.size();
		} else {
			
			drop_position = dirs.find(ti->get_metadata(0));
			if (drop_section == 1) {
				drop_position++;
			}
		}
		
		Vector<int> to_remove;
		int offset = 0;
		for (int i = 0; i < drag_files.size(); i++) {
			int to_remove_pos = dirs.find(drag_files[i]);
			to_remove.push_back(to_remove_pos);
			if (to_remove_pos < drop_position) {
				offset++;
			}
		}
		drop_position -= offset;
		to_remove.sort();
		for (int i = 0; i < to_remove.size(); i++) {
			dirs.remove_at(to_remove[i] - i);
		}
		
		for (int i = 0; i < drag_files.size(); i++) {
			dirs.insert(drop_position, drag_files[i]);
			drop_position++;