feat: 忘记密码页加入 Logo + 多语言切换

- forget.php: 加入左上角 Logo (back-home-link) 和右上角 lang-box
- forget.js: 加入 seletcLang 数据、changeLang 方法、getCommonSetting 中初始化语言

clientarea/hgcloud/forget.php

@@ -11,9 +11,18 @@
         <div class="ddr ddr5"></div>
     </div>
     <div class="template">
+        <a href="/" class="back-home-link">
+          <img id="siteLogo" src="/web/BlackFruit-web/assets/img/logo.png" alt="Logo" class="back-home-logo">
+        </a>
         <div id="forget">
             <div class="login-container">
                 <div class="login-jump-btn">
+                    <div class="lang-box">
+                      <span v-for="item in commonData.lang_list" :key="item.display_lang"
+                        :class="{active: item.display_lang == seletcLang}" @click="changeLang(item.display_lang)">
+                        {{item.display_name}}
+                      </span>
+                    </div>
                     <el-button type="primary" class="btn" v-if="commonData.login_register_redirect_show">
                         <a :href="commonData.login_register_redirect_url"
                             :target="commonData.login_register_redirect_blank ? '_blank' : '_self'">