Fixes #6748: provided a text version of the password-reset email.

apps/advanced/common/mail/layouts/text.php

+<?php
+use yii\helpers\Html;
+
+/* @var $this \yii\web\View view component instance */
+/* @var $message \yii\mail\MessageInterface the message being composed */
+/* @var $content string main view render result */
+?>
+<?php $this->beginPage() ?>
+<?php $this->beginBody() ?>
+<?= $content ?>
+<?php $this->endBody() ?>
+<?php $this->endPage() ?>

apps/advanced/frontend/models/PasswordResetRequestForm.php

@@ -47,7 +47,7 @@ class PasswordResetRequestForm extends Model
             }
 
             if ($user->save()) {
-                return \Yii::$app->mailer->compose('passwordResetToken', ['user' => $user])
+                return \Yii::$app->mailer->compose(['html' => 'passwordResetToken-html', 'text' => 'passwordResetToken-text'], ['user' => $user])
                     ->setFrom([\Yii::$app->params['supportEmail'] => \Yii::$app->name . ' robot'])
                     ->setTo($this->email)
                     ->setSubject('Password reset for ' . \Yii::$app->name)