### Godot version

4.1.1.stable

### System information

Godot v4.1.1.stable - Windows 10.0.19045 - Vulkan (Mobile) - dedicated NVIDIA GeForce RTX 2070 SUPER (NVIDIA; 30.0.15.1295) - Intel(R) Core(TM) i5-8400 CPU @ 2.80GHz (6 Threads)

### Issue description

When undocking the script editor so that it's floating, CollisionShape3D Shape Size handles stop working.

If they were visible on a Shape, they remain visible on that shape and still work for that shape; but they will not appear on any other collision object when selecting it.

If you launch the editor with the Script panel already in a floating state, no shape handles ever become visible.

If you dock the Script editor again, everything goes back to normal and works fine.

### Steps to reproduce

Create a 3D scene with some collision shapes.
Undock the Script editor

### Minimal reproduction project

N/A
Ref<EditorSyntaxHighlighter> syntax_highlighter;
	syntax_highlighter.instantiate();
	if (get_script_instance()) {
		syntax_highlighter->set_script(get_script_instance()->get_script());
	}
	return syntax_highlighter;
}
void EditorSyntaxHighlighter::_bind_methods() {
	ClassDB::bind_method(D_METHOD("_get_edited_resource"), &EditorSyntaxHighlighter::_get_edited_resource);
	GDVIRTUAL_BIND(_get_name)
	GDVIRTUAL_BIND(_get_supported_languages)
}
void EditorStandardSyntaxHighlighter::_update_cache() {
	highlighter->set_text_edit(text_edit);
	highlighter->clear_keyword_colors();
	highlighter->clear_member_keyword_colors();
	highlighter->clear_color_regions();
	highlighter->set_symbol_color(EDITOR_GET("text_editor/theme/highlighting/symbol_color"));
	highlighter->set_function_color(EDITOR_GET("text_editor/theme/highlighting/function_color"));
	highlighter->set_number_color(EDITOR_GET("text_editor/theme/highlighting/number_color"));
	highlighter->set_member_variable_color(EDITOR_GET("text_editor/theme/highlighting/member_variable_color"));
	
	const Color type_color = EDITOR_GET("text_editor/theme/highlighting/engine_type_color");
	List<StringName> types;
	ClassDB::get_class_list(&types);
	for (const StringName &E : types) {
		highlighter->add_keyword_color(E, type_color);