feat: update support links

Points forums and slack at new Laminas locations.

Removes newsletter, blog, and security links (no longer updating)

Author: weierophinney

index.html

@@ -766,26 +766,17 @@ <h4 class="footer__headline">Copyright</h4>
                 <h4 class="footer__headline">Support</h4>
                 <ul class="support__list">
                     <li class="support__list-item">
-                        <a href="https://discourse.zendframework.com" class="support__link" title="Forum"><i class="fa fa-comments"></i></a>
+                        <a href="https://discourse.laminas.dev" class="support__link" title="Forum"><i class="fa fa-comments"></i></a>
                     </li>
                     <li class="support__list-item">
-                        <a href="https://zendframework-slack.herokuapp.com" class="support__link" title="Chat"><i class="fa fa-slack"></i></a>
+                        <a href="https://laminas.dev/chat/" class="support__link" title="Chat"><i class="fa fa-slack"></i></a>
                     </li>
                     <li class="support__list-item">
                         <a href="https://github.com/zendframework" class="support__link" title="Github"><i class="fa fa-github"></i></a>
                     </li>
                     <li class="support__list-item">
                         <a href="https://twitter.com/zfdevteam" class="support__link" title="Twitter"><i class="fa fa-twitter"></i></a>
                     </li>
-                    <li class="support__list-item">
-                        <a href="https://tinyletter.com/mwopzend" class="support__link" title="Newsletter"><i class="fa fa-envelope"></i></a>
-                    </li>
-                    <li class="support__list-item">
-                        <a href="https://framework.zend.com/blog/feed-rss.xml" class="support__link" title="Blog feed"><i class="fa fa-rss"></i></a>
-                    </li>
-                    <li class="support__list-item">
-                        <a href="https://framework.zend.com/security/feed" class="support__link" title="Security feed"><i class="fa fa-rss-square"></i></a>
-                    </li>
                 </ul>
             </div>
         </div>