fix: update footer discussion forum link to actual forum URL

Changed footer link from non-existent anchor to actual forum.
This fixes the 404 error when clicking Discussion Forum.

Signed-off-by: Shubham Bobade <bobadeshubham0699@gmail.com>

Author: Shubham0699

site/src/components/Footer/index.js

@@ -98,13 +98,13 @@ const Footer = () => {
         </div>
         <div className="footer-links community">
           <h3 className="section-title">
-            <a className="title-link" href="https://meshery.io/community/#discussion-forums">
+            <a className="title-link" href="https://discuss.layer5.io">
               Community
             </a>
           </h3>
           <ul className="section-categories">
             <li>
-              <a className="category-link" href="https://meshery.io/community/#discussion-forums">
+              <a className="category-link" href="https://discuss.layer5.io">
                 Discussion Forum
               </a>
             </li>