chore: remove links from the sidebar

Author: mobily

docs/pages/docs/_meta.json

@@ -18,15 +18,5 @@
     "title": "Sponsor ↗",
     "href": "https://github.com/sponsors/mobily",
     "newWindow": true
-  },
-  "github_link": {
-    "title": "GitHub ↗",
-    "href": "https://github.com/grapp-dev/nui-components.nvim",
-    "newWindow": true
-  },
-  "discord_link": {
-    "title": "Discord ↗",
-    "href": "https://discord.gg/Rj2V3keVS4",
-    "newWindow": true
   }
 }