chore: change email template style

api/templates/reset_password_mail_template_zh-CN.html

@@ -63,7 +63,7 @@
         <!-- Optional: Add a logo or a header image here -->
         <img src="https://cloud.dify.ai/logo/logo-site.png" alt="Dify Logo" />
       </div>
-        <p class="title">重置您的Dify 账户密码</p>
+        <p class="title">重置您的 Dify 账户密码</p>
       <p class="description">复制并粘贴此验证码，注意验证码仅在接下来的 5 分钟内有效。</p>
       <div class="code-content">
         <span class="code">{{code}}</span>