1. Let's add a new language Italy.
   Create an it.php file in the assets/lang folder. And refer to the other languages to add or update the keys and values for translation.
2. You need to add a new language in the topbar dropdown in the file layouts/topbar.php file and fin the class "language-switch". You can add a new language flag so it will be able to render in the topbar.
3. You can use <?php echo $language["Forms"]; ?> in the view.

Email Settings

You can configure the email credentials in the config.php file.
NOTE: Manage your google account security with "Allow less secure apps" to ON. You check the setting from this link https://myaccount.google.com/lesssecureapps?gar=1.