Add sanitize calls to the code

Hi,

Could you add some sanitize calls to your code when you add data to the database.

https://codex.ww.wp.xz.cn/Validating_Sanitizing_and_Escaping_User_Data

    /**
     * Check option as default.
     *
     * @return void.
     */
    public function check()
    {
        // If valid ajax request.
        if ( static::is_valid_ajax() ) {
            /** @var Es_Settings_Container $es_settings */
            global $es_settings;
            $es_settings->saveOne( $_POST['container'], $_POST['id'] );

            $response = array( 'message' => __( 'Item has been selected.', 'es-plugin' ), 'status' => 'success' );
        } else {
            $response = array( 'message' => __( 'Invalid ajax request.', 'es-plugin' ), 'status' => 'error' );
        }

        wp_die( json_encode( $response ) );
    }

And:

    public static function remove()
    {
        // If valid ajax request.
        if ( static::is_valid_ajax() && $_POST['action'] ) {
            // Get available values.
            $values = Es_Settings_Container::get_setting_values( $_POST['container'] );

            // Remove item using ID and storage.
            if ( ! empty( $values ) ) {
                $values = get_option( $_POST['storage'], array() );
                unset( $values[ $_POST['id'] ] );
                update_option( $_POST['storage'], $values );

                $response = array( 'message' => __( 'Item is successfully deleted.', 'es-plugin' ), 'status' => 'success' );
            } else {
                $response = array( 'message' => __( 'Nothing for delete.', 'es-plugin' ), 'status' => 'warning' );
            }
        } else {
            $response = array( 'message' => __( 'Invalid ajax request.', 'es-plugin' ), 'status' => 'error' );
        }

        wp_die( json_encode( $response ) );
    }

Never trust user input.

Thank you.