Add extension warning and discord link to navigation bar

pages/extension.mdx

@@ -7,7 +7,7 @@ title: 'Browser extension'
 The sudo-flix browser extension greatly enhances streaming quality and video availability, meaning it will be easier and faster than ever to watch high quality media right in your browser.
 
 <Note>
-To enable the extension for a website, just click the prominent "On" button displayed when clicking the extension.
+The extension currently doesn't work with the larges provider: NSBX. We **DO NOT** recommend installing the extension as of now due to this.
 </Note>
 
 ## Features

theme.config.tsx

@@ -19,7 +19,17 @@ const starLinks = [
 
 export default defineTheme({
   github: "sussy-code/smov",
-  navigation: [link('Check it out', 'https://sudo-flix.lol')],
+  navigation: [
+    link('Discord', 'https://discord.gg/kdkTZ4McvD', {
+      style: 'star',
+      newTab: true,
+      icon: 'mdi:discord',
+    }),
+    link('Check it out', 'https://sudo-flix.lol', {
+      style: 'star',
+      newTab: true,
+    }),
+  ],
   contentFooter: {
     text: "Made with :3 (sillyness)",
     editRepositoryBase: "https://github.com/sussy-code/docs/blob/master",