### 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
ClassDB::bind_method(D_METHOD("add_item", "label", "id", "accel"), &PopupMenu::add_item, DEFVAL(-1), DEFVAL(0));
	ClassDB::bind_method(D_METHOD("add_icon_item", "texture", "label", "id", "accel"), &PopupMenu::add_icon_item, DEFVAL(-1), DEFVAL(0));
	ClassDB::bind_method(D_METHOD("add_check_item", "label", "id", "accel"), &PopupMenu::add_check_item, DEFVAL(-1), DEFVAL(0));
	ClassDB::bind_method(D_METHOD("add_icon_check_item", "texture", "label", "id", "accel"), &PopupMenu::add_icon_check_item, DEFVAL(-1), DEFVAL(0));
	ClassDB::bind_method(D_METHOD("add_radio_check_item", "label", "id", "accel"), &PopupMenu::add_radio_check_item, DEFVAL(-1), DEFVAL(0));
	ClassDB::bind_method(D_METHOD("add_icon_radio_check_item", "texture", "label", "id", "accel"), &PopupMenu::add_icon_radio_check_item, DEFVAL(-1), DEFVAL(0));
	ClassDB::bind_method(D_METHOD("add_multistate_item", "label", "max_states", "default_state", "id", "accel"), &PopupMenu::add_multistate_item, DEFVAL(0), DEFVAL(-1), DEFVAL(0));
	ClassDB::bind_method(D_METHOD("add_shortcut", "shortcut", "id", "global", "allow_echo"), &PopupMenu::add_shortcut, DEFVAL(-1), DEFVAL(false), DEFVAL(false));
	ClassDB::bind_method(D_METHOD("add_icon_shortcut", "texture", "shortcut", "id", "global", "allow_echo"), &PopupMenu::add_icon_shortcut, DEFVAL(-1), DEFVAL(false), DEFVAL(false));
	ClassDB::bind_method(D_METHOD("add_check_shortcut", "shortcut", "id", "global"), &PopupMenu::add_check_shortcut, DEFVAL(-1), DEFVAL(false));
	ClassDB::bind_method(D_METHOD("add_icon_check_shortcut", "texture", "shortcut", "id", "global"), &PopupMenu::add_icon_check_shortcut, DEFVAL(-1), DEFVAL(false));
	ClassDB::bind_method(D_METHOD("add_radio_check_shortcut", "shortcut", "id", "global"), &PopupMenu::add_radio_check_shortcut, DEFVAL(-1), DEFVAL(false));
	ClassDB::bind_method(D_METHOD("add_icon_radio_check_shortcut", "texture", "shortcut", "id", "global"), &PopupMenu::add_icon_radio_check_shortcut, DEFVAL(-1), DEFVAL(false));
	ClassDB::bind_method(D_METHOD("add_submenu_item", "label", "submenu", "id"), &PopupMenu::add_submenu_item, DEFVAL(-1));
	ClassDB::bind_method(D_METHOD("set_item_text", "index", "text"), &PopupMenu::set_item_text);
	ClassDB::bind_method(D_METHOD("set_item_text_direction", "index", "direction"), &PopupMenu::set_item_text_direction);
	ClassDB::bind_method(D_METHOD("set_item_language", "index", "language"), &PopupMenu::set_item_language);
	ClassDB::bind_method(D_METHOD("set_item_icon", "index", "icon"), &PopupMenu::set_item_icon);
	ClassDB::bind_method(D_METHOD("set_item_icon_max_width", "index", "width"), &PopupMenu::set_item_icon_max_width);
	ClassDB::bind_method(D_METHOD("set_item_icon_modulate", "index", "modulate"), &PopupMenu::set_item_icon_modulate);
	ClassDB::bind_method(D_METHOD("set_item_checked", "index", "checked"), &PopupMenu::set_item_checked);
	ClassDB::bind_method(D_METHOD("set_item_id", "index", "id"), &PopupMenu::set_item_id);
	ClassDB::bind_method(D_METHOD("set_item_accelerator", "index", "accel"), &PopupMenu::set_item_accelerator);
	ClassDB::bind_method(D_METHOD("set_item_metadata", "index", "metadata"), &PopupMenu::set_item_metadata);
	ClassDB::bind_method(D_METHOD("set_item_disabled", "index", "disabled"), &PopupMenu::set_item_disabled);
	ClassDB::bind_method(D_METHOD("set_item_submenu", "index", "submenu"), &PopupMenu::set_item_submenu);
	ClassDB::bind_method(D_METHOD("set_item_as_separator", "index", "enable"), &PopupMenu::set_item_as_separator);
	ClassDB::bind_method(D_METHOD("set_item_as_checkable", "index", "enable"), &PopupMenu::set_item_as_checkable);
	ClassDB::bind_method(D_METHOD("set_item_as_radio_checkable", "index", "enable"), &PopupMenu::set_item_as_radio_checkable);
	ClassDB::bind_method(D_METHOD("set_item_tooltip", "index", "tooltip"), &PopupMenu::set_item_tooltip);