fix email template

api/templates/change_mail_confirm_new_template_en-US.html

@@ -78,7 +78,7 @@
       background-color: #f2f4f7;
     }
 
-    .code {      
+    .code {
       color: #101828;
       font-family: Inter;
       font-size: 30px;

api/templates/change_mail_confirm_new_template_zh-CN.html

@@ -78,7 +78,7 @@
       background-color: #f2f4f7;
     }
 
-    .code {      
+    .code {
       color: #101828;
       font-family: Inter;
       font-size: 30px;

api/templates/change_mail_confirm_old_template_en-US.html

@@ -78,7 +78,7 @@
       background-color: #f2f4f7;
     }
 
-    .code {      
+    .code {
       color: #101828;
       font-family: Inter;
       font-size: 30px;

api/templates/change_mail_confirm_old_template_zh-CN.html

@@ -78,7 +78,7 @@
       background-color: #f2f4f7;
     }
 
-    .code {      
+    .code {
       color: #101828;
       font-family: Inter;
       font-size: 30px;
@@ -109,7 +109,7 @@
       <img src="https://assets.dify.ai/images/logo.png" alt="Dify Logo" />
     </div>
     <p class="title">验证您的邮箱变更请求</p>
-    <div class="description"> 
+    <div class="description">
       <p class="content1">我们收到了一个变更您 Dify 账户关联邮箱地址的请求。</p>
       <p class="content2">我们收到了一个变更您 Dify 账户关联邮箱地址的请求。</p>
       <p class="content3">此验证码仅在接下来的5分钟内有效：</p>