### Godot version

4.1.1

### System information

linux

### Issue description

[simplescreenrecorder-2023-08-30_15.01.51.webm](https://github.com/godotengine/godot-proposals/assets/71937306/537d92b9-4f98-4fe6-adf4-71297be0471a)

I guess this wasn't the case before since I could save a layout named "2 monitors".

### Steps to reproduce

press space

### Minimal reproduction project

none
constant_amount += filtered_names.size();
					break;
				case Theme::DATA_TYPE_FONT:
					data_type_node->set_icon(0, get_theme_icon(SNAME("Font"), SNAME("EditorIcons")));
					data_type_node->set_text(0, TTR("Fonts"));
					item_list = &tree_font_items;
					font_amount += filtered_names.size();
					break;
				case Theme::DATA_TYPE_FONT_SIZE:
					data_type_node->set_icon(0, get_theme_icon(SNAME("FontSize"), SNAME("EditorIcons")));
					data_type_node->set_text(0, TTR("Font Sizes"));
					item_list = &tree_font_size_items;
					font_size_amount += filtered_names.size();
					break;
				case Theme::DATA_TYPE_ICON:
					data_type_node->set_icon(0, get_theme_icon(SNAME("ImageTexture"), SNAME("EditorIcons")));
					data_type_node->set_text(0, TTR("Icons"));
					item_list = &tree_icon_items;
					icon_amount += filtered_names.size();
					break;
				case Theme::DATA_TYPE_STYLEBOX:
					data_type_node->set_icon(0, get_theme_icon(SNAME("StyleBoxFlat"), SNAME("EditorIcons")));
					data_type_node->set_text(0, TTR("Styleboxes"));
					item_list = &tree_stylebox_items;
					stylebox_amount += filtered_names.size();
					break;
				case Theme::DATA_TYPE_MAX:
					break; 
			}
			filtered_names.sort_custom<StringName::AlphCompare>();