Solve PHP warnings and improve performance

Congrats for the plugin and the good fees you guys have! 🙂

In some files, in new WordPress function, the plugin cause a PHP warning slowing down performance, this is the solution to be set in some files:

 public function __construct()
    {
        /*$this->id = 'integration_rede_pix';
        $this->title = 'Integration Rede Pix';
        $this->has_fields = true;
        $this->method_title = esc_attr__('Pay with the Rede Pix FREE', 'woo-rede');
        $this->method_description = esc_attr__('Enables and configures payments with Rede Pix', 'woo-rede');
        $this->supports = array(
            'products',
            'refunds',
        );

        // Define os campos de configuração do método de pagamento
        $this->init_form_fields();
        $this->init_settings();*/

        add_action('init', array($this, 'initFunctions'));

        // Define as configurações do método de pagamento
        $this->title = $this->get_option('title');
        $this->log = $this->get_logger();
        $this->debug = $this->get_option('debug');
    }

    public function initFunctions() {
        $this->id = 'integration_rede_pix';
        $this->title = 'Integration Rede Pix';
        $this->has_fields = true;
        $this->method_title = esc_attr__('Pay with the Rede Pix FREE', 'woo-rede');
        $this->method_description = esc_attr__('Enables and configures payments with Rede Pix', 'woo-rede');
        $this->supports = array(
            'products',
            'refunds',
        );

        // Define os campos de configuração do método de pagamento
        $this->init_form_fields();
        $this->init_settings();
    }

Please, set that up in new versions. Thank you!