### Godot version

4.1.1

### System information

linux

### Issue description

![image](https://github.com/godotengine/godot-proposals/assets/71937306/04dcf0e9-1c0d-4a7f-8ca9-827dd281253a)

![image](https://github.com/godotengine/godot-proposals/assets/71937306/aa70e31e-0486-455a-b8b4-7e589ec7b754)

notice how the first option in the list is never aligned with the button that spawned it.

### Steps to reproduce

right click in the FileSystem dock and hover over the `Create New →` option.

### Minimal reproduction project

editor
bool checkable = p_value;
				set_item_as_checkable(item_index, checkable);
			}
			return true;
		} else if (property == "checked") {
			set_item_checked(item_index, p_value);
			return true;
		} else if (property == "id") {
			set_item_id(item_index, p_value);
			return true;
		} else if (property == "disabled") {
			set_item_disabled(item_index, p_value);
			return true;
		} else if (property == "separator") {
			set_item_as_separator(item_index, p_value);
			return true;
		}
	}
#ifndef DISABLE_DEPRECATED
	
	if (p_name == "items") {
		Array arr = p_value;
		ERR_FAIL_COND_V(arr.size() % 10, false);
		clear();
		for (int i = 0; i < arr.size(); i += 10) {
			String text = arr[i + 0];
			Ref<Texture2D> icon = arr[i + 1];
			
			bool checkable = arr[i + 2];
			bool radio_checkable = (int)arr[i + 2] == Item::CHECKABLE_TYPE_RADIO_BUTTON;