### Tested versions

Caused by [0d6300d269b818e6c3d3ea9cbc592480103aa6d0] Fix folder color not showing up in file dialogs
https://github.com/godotengine/godot/pull/84837
(git bisection)

### System information

Godot v4.3.dev (6faa5c6dc) - Fedora Linux 39 (Workstation Edition) - Wayland - Vulkan (Forward+) - dedicated AMD Radeon RX Vega (RADV VEGA10) () - AMD Ryzen 7 5800X 8-Core Processor (16 Threads)

### Issue description

When opening the export path, it results in a black popup.

![image](https://github.com/godotengine/godot/assets/270928/d67dee6a-f1e1-4bf3-8a3f-419554269f4a)


### Steps to reproduce

1. Open export settings
2. Add an export target
3. Try to select an export path

### Minimal reproduction project (MRP)

n/a
ERR_FAIL_COND_MSG(body_hsplit->get_child_count() > 2, "EditorFileDialog: Only one side menu can be added.");
	
	VBoxContainer *side_vbox = memnew(VBoxContainer);
	side_vbox->set_h_size_flags(Control::SIZE_EXPAND_FILL);
	side_vbox->set_stretch_ratio(0.5);
	body_hsplit->add_child(side_vbox);
	
	if (!p_title.is_empty()) {
		Label *title_label = memnew(Label(p_title));
		title_label->set_theme_type_variation("HeaderSmall");
		side_vbox->add_child(title_label);
	}
	
	p_menu->set_v_size_flags(Control::SIZE_EXPAND_FILL);
	side_vbox->add_child(p_menu);
}
EditorFileDialog::EditorFileDialog() {
	show_hidden_files = default_show_hidden_files;
	display_mode = default_display_mode;
	VBoxContainer *vbc = memnew(VBoxContainer);
	add_child(vbc);
	set_title(TTR("Save a File"));
	ED_SHORTCUT("file_dialog/go_back", TTR("Go Back"), KeyModifierMask::ALT | Key::LEFT);
	ED_SHORTCUT("file_dialog/go_forward", TTR("Go Forward"), KeyModifierMask::ALT | Key::RIGHT);
	ED_SHORTCUT("file_dialog/go_up", TTR("Go Up"), KeyModifierMask::ALT | Key::UP);
	ED_SHORTCUT("file_dialog/refresh", TTR("Refresh"), Key::F5);
	ED_SHORTCUT("file_dialog/toggle_hidden_files", TTR("Toggle Hidden Files"), KeyModifierMask::CMD_OR_CTRL | Key::H);
	ED_SHORTCUT("file_dialog/toggle_favorite", TTR("Toggle Favorite"), KeyModifierMask::ALT | Key::F);
	ED_SHORTCUT("file_dialog/toggle_mode", TTR("Toggle Mode"), KeyModifierMask::ALT | Key::V);