chore: update discord links

docusaurus.config.js

@@ -87,6 +87,10 @@ const config = {
             label: 'Github',
             href: 'https://github.com/waku-org',
           },
+          {
+            label: 'Discord',
+            href: 'https://discord.waku.org/',
+          },
         ],
       },
       footer: {
@@ -99,7 +103,7 @@ const config = {
                 label: 'Twitter',
               },
               {
-                href: 'https://discord.gg/wc8gj26cwH',
+                href: 'https://discord.waku.org/',
                 label: 'Discord',
               },
               {

src/pages/index.mdx

@@ -25,8 +25,7 @@ import {
       {`Waku is Uncompromising Web3 Communication at Scale`}
     </HeroTitle>
     <HeroDescription>
-      {`A family of robust, censorship-resistant communication protocols designed to enable privacy-focused messaging for web3 apps. 
-`} 
+      {`A family of robust, censorship-resistant communication protocols designed to enable privacy-focused messaging for web3 apps.`} 
     </HeroDescription>
     <HeroActions>
       <HeroAction href="https://docs.waku.org/" target="_blank">
@@ -191,6 +190,6 @@ import {
     }
     label="Join us on Discord"
     target="_blank"
-    href="http://discord.waku.org"
+    href="https://discord.waku.org/"
   />
 </Box>