### Godot version

4.0.beta13 (caacade56)

### System information

Windows 10

### Issue description

Seems like this was missed in #62011 and #70540. `@export_multiline` should also support the PackedStringArray datatype on top of Array[String] and Dictionary, but it doesn't, instead giving the error `"@export_multiline" annotation requires a variable of type "String" but type "PackedStringArray" was given instead.`

### Steps to reproduce

Create a PackedStringArray with the `@export_multiline` annotation.
```gdscript
@export_multiline var npc_dialog: PackedStringArray
```

### Minimal reproduction project

N/A
}
void EditorPropertyRect2i::setup(int p_min, int p_max, const String &p_suffix) {
	for (int i = 0; i < 4; i++) {
		spin[i]->set_min(p_min);
		spin[i]->set_max(p_max);
		spin[i]->set_step(1);
		spin[i]->set_allow_greater(true);
		spin[i]->set_allow_lesser(true);
		spin[i]->set_suffix(p_suffix);
	}
}
EditorPropertyRect2i::EditorPropertyRect2i(bool p_force_wide) {
	bool horizontal = p_force_wide || bool(EDITOR_GET("interface/inspector/horizontal_vector_types_editing"));
	bool grid = false;
	BoxContainer *bc;
	if (p_force_wide) {
		bc = memnew(HBoxContainer);
		add_child(bc);
	} else if (horizontal) {
		bc = memnew(VBoxContainer);
		add_child(bc);
		set_bottom_editor(bc);
		bc->add_child(memnew(HBoxContainer));
		bc->add_child(memnew(HBoxContainer));
		grid = true;