Method addButton

src/lib/MenuComponent.ts:21–27

* Add a button to the menu

(button: MenuButton)

	 * Add a button to the menu
	 */
	static addButton (button: MenuButton): void {
		this.engine.configuration(this.tag, {
			buttons: [...this.buttons(), button]
		});

		this.onConfigurationUpdate();
	}

	/**
	 * Add a button after another button