add Telegram bot id dialogs table and API methods

frontend/modules/api/models/profile/forms/ProfileChangePersonalDataForm.php

@@ -0,0 +1,31 @@
+<?php
+
+namespace frontend\modules\api\models\profile\forms;
+
+use yii\base\Model;
+
+class ProfileChangePersonalDataForm extends Model
+{
+    /**
+     * @var string
+     */
+    public $newUsername;
+    /**
+     * @return array
+     */
+    public function rules()
+    {
+        return [
+            [['newUsername'], 'string', 'max' => 255],
+            [['newUsername'], 'required'],
+        ];
+    }
+
+    /**
+     * @return string
+     */
+    public function formName(): string
+    {
+        return '';
+    }
+}