docs: drop X social link from footer

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

Author: Aditya Thiruvengadam

docs/docs.json

@@ -136,7 +136,6 @@
   },
   "footer": {
     "socials": {
-      "x": "https://x.com/klarityai",
       "github": "https://github.com/Klarity-AI",
       "linkedin": "https://www.linkedin.com/company/klarityai/"
     },