Fix: update Slack link to correct external URL

Author: Bhumikagarggg

pages/index.page.tsx

@@ -188,12 +188,14 @@ const Home = (props: any) => {
               >
                 Getting started
               </Link>
-              <Link
-                href='/slack'
-                className='flex items-center justify-center rounded border-2 border-white dark:border-none hover:bg-blue-700 transition-all duration-300 ease-in-out text-white  w-[194px] h-[40px] font-semibold bg-primary dark:shadow-2xl'
+              <a
+                href="https://json-schema.org/slack"
+                target="_blank"
+                rel="noopener noreferrer"
+                className="flex items-center justify-center rounded border-2 border-white dark:border-none hover:bg-blue-700 transition-all duration-300 ease-in-out text-white  w-[194px] h-[40px] font-semibold bg-primary dark:shadow-2xl"
               >
                 Join Slack
-              </Link>
+              </a>
               <AlgoliaSearch />
             </div>