### Godot version

v4.0.stable.official [92bee43ad]

### System information

Linux - v4.0.stable.official [92bee43ad]

### Issue description

It gives you the possibility of removing unexisting key/value pairs from a dictionary.

### Steps to reproduce

![image](https://github.com/godotengine/godot/assets/69520693/35beadbe-bfdd-4176-9b26-222bbf69cafa)
![image](https://github.com/godotengine/godot/assets/69520693/7ed647e0-a2af-4e58-9f00-f77b7bc7bb02)
![image](https://github.com/godotengine/godot/assets/69520693/f08bf824-8408-45eb-bb84-f1dc7e19e392)


### Minimal reproduction project

N/A
}
EditorPropertyArray::EditorPropertyArray() {
	object.instantiate();
	page_length = int(EDITOR_GET("interface/inspector/max_array_dictionary_items_per_page"));
	edit = memnew(Button);
	edit->set_h_size_flags(SIZE_EXPAND_FILL);
	edit->set_clip_text(true);
	edit->connect("pressed", callable_mp(this, &EditorPropertyArray::_edit_pressed));
	edit->set_toggle_mode(true);
	SET_DRAG_FORWARDING_CD(edit, EditorPropertyArray);
	edit->connect("draw", callable_mp(this, &EditorPropertyArray::_button_draw));
	add_child(edit);
	add_focusable(edit);
	change_type = memnew(PopupMenu);
	add_child(change_type);
	change_type->connect("id_pressed", callable_mp(this, &EditorPropertyArray::_change_type_menu));
	changing_type_index = -1;
	subtype = Variant::NIL;
	subtype_hint = PROPERTY_HINT_NONE;
	subtype_hint_string = "";
}
void EditorPropertyDictionary::_property_changed(const String &p_property, Variant p_value, const String &p_name, bool p_changing) {