Integrate CogniteFileViewer

Add CogniteFileViewer to this Dune app to preview CDF files (PDF, image, text).

Your job

Complete these steps in order. Read each file before modifying it.

Step 1 — Understand the app

Read these files before touching anything:

• package.json — detect package manager (packageManager field or lock file) and existing deps
• vite.config.ts — understand current Vite setup
• The component where the viewer should be added