WPForms: Customize Inline Validation Error Messages

<?php
if ( function_exists( 'wpforms' ) && ! function_exists( 'scseed_wpf_custom_strings' ) ) {
    /**
     * Overrides WPForms frontend error strings.
     * Only the keys listed here are changed; all others stay at their defaults.
     * Run after init (priority 15) so WPForms has registered its own strings first.
     *
     * @param array $strings Existing frontend string definitions.
     * @return array
     */
    function scseed_wpf_custom_strings( $strings ) {
        $strings['val_required']         = 'This field is required.';
        $strings['val_url']              = 'Please enter a valid URL (https://...).';
        $strings['val_email']            = 'Please enter a valid email address.';
        $strings['val_email_suggestion'] = 'Did you mean {suggestion}?';
        $strings['val_number']           = 'Please enter a valid number.';
        $strings['val_recaptcha']        = 'Please verify you are not a robot.';
        return $strings;
    }
    add_filter( 'wpforms_frontend_strings', 'scseed_wpf_custom_strings' );
}