### Godot version

4.0b10

### System information

Linux/Manjaro

### Issue description

Most dialogs in the editor scale their text field Controls to fit the whole window when it's resized, but the plugin creation dialog does not: 
![image](https://user-images.githubusercontent.com/24468819/210095286-e53bc450-dcdc-472c-acc7-f8b3532a0ca2.png)


### Steps to reproduce

1. Go to Project Settings -> Plugins -> Create New Plugin
2. Resize the new dialog

### Minimal reproduction project

N/A
script_option_edit->select(default_lang);
	grid->add_child(script_option_edit);
	script_option_edit->connect("item_selected", callable_mp(this, &PluginConfigDialog::_on_language_changed));
	
	Label *script_lb = memnew(Label);
	script_lb->set_text(TTR("Script Name:"));
	script_lb->set_horizontal_alignment(HORIZONTAL_ALIGNMENT_RIGHT);
	grid->add_child(script_lb);
	script_validation = memnew(TextureRect);
	script_validation->set_v_size_flags(Control::SIZE_SHRINK_CENTER);
	grid->add_child(script_validation);
	script_edit = memnew(LineEdit);
	script_edit->connect("text_changed", callable_mp(this, &PluginConfigDialog::_on_required_text_changed));
	script_edit->set_placeholder("\"plugin.gd\" -> res://addons/my_plugin/plugin.gd");
	grid->add_child(script_edit);
	
	
	Label *active_lb = memnew(Label);
	active_lb->set_text(TTR("Activate now?"));
	active_lb->set_horizontal_alignment(HORIZONTAL_ALIGNMENT_RIGHT);
	grid->add_child(active_lb);
	Control *active_spacer = memnew(Control);
	grid->add_child(active_spacer);
	active_edit = memnew(CheckBox);
	active_edit->set_pressed(true);
	grid->add_child(active_edit);
}
PluginConfigDialog::~PluginConfigDialog() {
}