[TOOL-3429] Dashboard: Delete Insight playground, Add Playground Link (#6261)

![image.png](https://graphite-user-uploaded-assets-prod.s3.amazonaws.com/yNOf1svJ8o3zjO7zQouZ/fb78547c-031f-44e0-bbd3-410a534d237d.png)

Author: MananTank

apps/dashboard/package.json

@@ -72,7 +72,6 @@
     "next-plausible": "^3.12.4",
     "next-themes": "^0.4.4",
     "nextjs-toploader": "^1.6.12",
-    "openapi-types": "^12.1.3",
     "p-limit": "^6.2.0",
     "papaparse": "^5.5.2",
     "pluralize": "^8.0.0",