Adds reCAPTCHA to the RoundCube login form
See "Getting Started" on https://plugins.roundcube.net/
Plugin name is "wildwolf/recaptcha"
Edit config.inc.php
file in /plugins/recaptcha:
<?php
// See https://www.google.com/recaptcha/
// See https://developers.google.com/recaptcha/docs/display
$rcmail_config['recaptcha_public_key'] = 'sitekey form https://www.google.com/recaptcha/admin';
$rcmail_config['recaptcha_secret_key'] = 'secret from https://www.google.com/recaptcha/admin';
$rcmail_config['recaptcha_theme'] = 'dark or light';