feat: Update Discord links in privacy policy and navigation

The code changes include:
- Updating the Discord link in the privacy policy page to [Zen Browser's Discord](https://discord.com/servers/mauro-s-little-sweatshop-1088172780480114748).
- Updating the Discord link in the navigation component to [Zen Browser's Discord](https://discord.com/servers/mauro-s-little-sweatshop-1088172780480114748).

src/app/privacy-policy/page.tsx

@@ -83,7 +83,7 @@ You can also optionally enable telemetry data collection and other Mozilla Resea
 # 9. Contact Us
 If you have any questions or concerns about this Privacy Policy or Zen Browser, please contact us at:
 
-* Discord: [Zen Browser's Discord](https://discord.gg/nnShMQzR4b)
+* Discord: [Zen Browser's Discord](https://discord.com/servers/mauro-s-little-sweatshop-1088172780480114748)
 * GitHub: [Organization](https://github.com/zen-browser)
 
 ---

src/components/navigation.tsx

@@ -28,7 +28,7 @@ export const components: { title: string; href: string; description: string }[]
   },
   {
     title: "Discord",
-    href: "https://discord.gg/nnShMQzR4b",
+    href: "https://discord.com/servers/mauro-s-little-sweatshop-1088172780480114748",
     description: "Join our Discord server to chat with the community."
   },
   {