Enhance security by adding rel="noopener" to external links

- Updated multiple HTML templates to include rel="noopener" on links that open in a new tab, improving security by preventing potential reverse tabnabbing attacks.
- This change affects various templates across the backup, base, file manager, mail server, and website functions sections.

mailServer/templates/mailServer/listEmails.html

@@ -560,7 +560,7 @@
                     <i class="fas fa-plus-circle"></i>
                     {% trans "Create Email" %}
                 </a>
-                <a target="_blank" href="https://cyberpanel.net/KnowledgeBase/home/email-debugger-cyberpanel/" class="btn-secondary">
+                <a target="_blank" rel="noopener" href="https://cyberpanel.net/KnowledgeBase/home/email-debugger-cyberpanel/" class="btn-secondary">
                     <i class="fas fa-bug"></i>
                     {% trans "Debug Email Issues" %}
                 </a>
@@ -610,7 +610,7 @@
                                 <i class="fas fa-exclamation-triangle"></i>
                                 <div>
                                     <p style="margin: 0;">{% trans "SSL for email is not configured properly. You may get self-signed errors in mail clients like Outlook and Thunderbird." %}</p>
-                                    <a href="https://community.cyberpanel.net/t/6-self-signed-ssl-error-on-outlook-thunderbird/207" target="_blank" style="color: var(--danger-text, #991b1b); text-decoration: underline;">{% trans "Learn more" %}</a>
+                                    <a href="https://community.cyberpanel.net/t/6-self-signed-ssl-error-on-outlook-thunderbird/207" target="_blank" rel="noopener" style="color: var(--danger-text, #991b1b); text-decoration: underline;">{% trans "Learn more" %}</a>
                                 </div>
                             </div>
                             <button ng-hide="mailConfigured==1" ng-click='fixMailSSL()' class="btn-primary mb-4">