### Godot version

4 rc 6

### System information

win 11

### Issue description

if u right click on tile in tileset editor in setup tab you get "delete delete" as an option but if u actually press the delete key it tries to delete the node in the scene tree

### Steps to reproduce

make tileset
add tile
try to delete tile with delete key

### Minimal reproduction project

N/A
switch (p_what) {
		case NOTIFICATION_ENTER_TREE:
		case NOTIFICATION_THEME_CHANGED: {
			tool_setup_atlas_source_button->set_icon(get_theme_icon(SNAME("Tools"), SNAME("EditorIcons")));
			tool_select_button->set_icon(get_theme_icon(SNAME("ToolSelect"), SNAME("EditorIcons")));
			tool_paint_button->set_icon(get_theme_icon(SNAME("CanvasItem"), SNAME("EditorIcons")));
			tools_settings_erase_button->set_icon(get_theme_icon(SNAME("Eraser"), SNAME("EditorIcons")));
			tool_advanced_menu_button->set_icon(get_theme_icon(SNAME("GuiTabMenuHl"), SNAME("EditorIcons")));
			resize_handle = get_theme_icon(SNAME("EditorHandle"), SNAME("EditorIcons"));
			resize_handle_disabled = get_theme_icon(SNAME("EditorHandleDisabled"), SNAME("EditorIcons"));
		} break;
		case NOTIFICATION_INTERNAL_PROCESS: {
			if (tile_set_changed_needs_update) {
				
				read_only = false;
				
				if (tile_set.is_valid()) {
					read_only = EditorNode::get_singleton()->is_resource_read_only(tile_set);
				}
				
				tool_paint_button->set_disabled(read_only);
				tools_settings_erase_button->set_disabled(read_only);